1.Chinese Materia Medica by Regulating Nrf2 Signaling Pathway in Prevention and Treatment of Ulcerative Colitis: A Review
Yasheng DENG ; Lanhua XI ; Yanping FAN ; Wenyue LI ; Tianwei LIANG ; Hui HUANG ; Shan LI ; Xian HUANG ; Chun YAO ; Guochu HUANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):321-330
Ulcerative colitis(UC) is a chronic non-specific inflammatory bowel disease characterized by inflammation and ulceration of the colonic mucosa and submucosa, and its complex pathogenesis involves immune abnormality, oxidative stress and other factors. The nuclear transcription factor E2-related factor 2(Nrf2), encoded by the Nfe212 gene, plays a central role in antioxidant responses. It not only activates various antioxidant response elements such as heme oxygenase-1(HO-1) and quinone oxidoreductase 1(NQO1), but also enhances the activity of glutathione-S-transferase(GST) and superoxide dismutase 1(SOD1), effectively eliminating reactive oxygen species(ROS) accumulated in the body, and mitigating oxidative stress-induced damage to intestinal mucosa. In addition, Nrf2 can reduce the release of inflammatory factors and infiltration of immune cells by regulating immune response, cell apoptosis and autophagy pathways, thereby alleviating intestinal inflammation and promoting the repair and regeneration of damaged mucosa. Based on this, this paper reviews the research progress of Chinese materia medica in the prevention and treatment of UC by modulating the Nrf2 signaling pathway. It deeply explores the physiological role of Nrf2, the molecular mechanism of activation, the protective effect in the pathological process of UC, and how active ingredients in Chinese materia medica regulate the Nrf2 signaling pathway through multiple pathways to exert their potential mechanisms. These studies have revealed in depth that Chinese materia medica can effectively combat oxidative stress by regulating the Nrf2 signaling pathway. It can also play a role in anti-inflammatory, promoting autophagy, inhibiting apoptosis, protecting the intestinal mucosal barrier, and promoting intestinal mucosal repair, providing new ideas and methods for the multi-faceted treatment of UC.
2.Clinical Efficacy of Tangning Tongluo Tablets for Nonproliferative Diabetic Retinopathy
Fuwen ZHANG ; Junguo DUAN ; Wen XIA ; Tiantian SUN ; Yuheng SHI ; Shicui MEI ; Xiangxia LUO ; Xing LI ; Yujie PAN ; Yong DENG ; Chuanlian RAN ; Hao CHEN ; Li PEI ; Shuyu YANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(3):132-139
ObjectiveTo observe the clinical efficacy and safety of Tangning Tongluo tablets in the treatment of nonproliferative diabetic retinopathy (DR). MethodsFourteen research centers participated in this study, which spanned a time interval from September 2021 to May 2023. A total of 240 patients with nonproliferative DR were included and randomly assigned into an observation group (120 cases) and a control group (120 cases). The observation group was treated with Tangning Tongluo tablets, and the control group with calcium dobesilate capsules. Both groups were treated for 24 consecutive weeks. The vision, DR progression rate, retinal microhemangioma, hemorrhage area, exudation area, glycosylated hemoglobin (HbA1c) level, and TCM syndrome score were assessed before and after treatment, and the safety was observed. ResultsThe vision changed in both groups after treatment (P<0.05), and the observation group showed higher best corrected visual acuity (BCVA) than the control group (P<0.05). The DR progression was slow with similar rates in the two groups. The fundus hemorrhage area and exudation area did not change significantly after treatment in both groups, while the observation group outperformed the control group in reducing the fundus hemorrhage area and exudation area. There was no significant difference in the number of microhemangiomas between the two groups before treatment. After treatment, the number of microhemangiomas decreased in both the observation group (Z=-1.437, P<0.05) and the control group (Z=-2.238, P<0.05), and it showed no significant difference between the two groups. As the treatment time prolonged, the number of microhemangiomas gradually decreased in both groups. There was no significant difference in the HbA1c level between the two groups before treatment. After treatment, the decline in the HbA1c level showed no significant difference between the two groups. The TCM syndrome score did not have a statistically significant difference between the two groups before treatment. After treatment, neither the TCM syndrome score nor the response rate had significant difference between the two groups. With the extension of the treatment time, both groups showed amelioration of TCM syndrome compared with the baseline. ConclusionTangning Tongluo tablets are safe and effective in the treatment of nonproliferative DR, being capable of improving vision and reducing hemorrhage and exudation in the fundus.
3.Development of Patient Self-Reported Core Outcome Set in Community Studies on Heat-Sensitive Moxibustion for Primary Hypertension
Jianyu YOU ; Shuqing LI ; Guihua DENG ; Xu ZHOU
Journal of Traditional Chinese Medicine 2025;66(1):34-41
ObjectiveTo establish the self-reported core outcome set (COS) for patients with an example of a community study on heat-sensitive moxibustion for primary hypertension (PH), to provide a reference for the selection of effectiveness evaluation indicators in community study on heat-sensitive moxibustion. MethodsA systematic literature search was conducted to collect outcomes used in randomized controlled trials and systematic review of heat-sensitive moxibustion for PH (Jan 2021), and additional outcomes were added through patient and expert questionnaires (Feb 2021) to create a pool of outcome entries. A multidisciplinary expert Delphi survey was conducted to screen outcomes applicable to patient self-reporting (Apr 2021), and the importance of outcome indicators was rated on a 5-Point Likert Scale. Finally, patient self-reported COS was determined through a consensus conference (June 2021). ResultsA pool of patient self-reported indicators in the community study of heat-sensitive moxibustion treatment for PH was generated by standardizing and combining the outcome indicators based on the results of the literature search and the questionnaire survey, which consisted of totally 100 measurement tools or contents, excluding 51 indicators or measurement tools required measurement by specialized physicians or hospital equipment, and 49 items were retained to enter the initial list of indicator entries. For the first round of Delphi survey, the mean score for expert familiarity was 0.819, the mean score for basis of judgment was 0.710, and the expert authority coefficient was 0.765, with a total of 21 indicator measurement tools or contents deleted (significance score ≤ 75 or coefficient of variation > 0.25), 28 retained, and 3 new expert-added indicator entries added. In the second round of Delphi survey, the average score for expert familiarity was 0.859, the average score for basis for judgment was 0.763, and the expert authority coefficient was 0.811, with a total of 11 indicator measurement tools or contents deleted and 20 retained involving 5 domains. Following an expert consensus meeting, 8 outcome indicators were finalized for inclusion in the patient self-reported COS, including 6 indicators of effectiveness evaluation such as quality-of-life scores, blood pressure, traditional Chinese medicine symptom scores, cost-benefit, cardiovascular and cerebrovascular events, and adverse reactions/events, and 2 indicators of factors influencing effectiveness such as sensation of heat-sensitive moxibustion, and adherence. ConclusionIn this study, we initially established a criteria for evaluating the effectiveness in the community study on heat-sensitive moxibustion by constructing patient self-reported COS in the community study on heat-sensitive moxibustion for PH, which can provide a scientific research paradigm for the subsequent development of the community study on heat-sensitive moxibustion.
4.Exploration of the Intervention Mechanism of Qingshi Anti-itch Ointment (青石止痒软膏) on Psoriasis Model Mice Based on Caspase-1/GSDMD Protein Pathway
Yatong LI ; Yuanwen LI ; Yutong DENG ; Xuewen REN ; Xuewan WANG ; Xinhui YU ; Tangyunni LIU
Journal of Traditional Chinese Medicine 2025;66(2):170-177
ObjectiveTo explore the possible action mechanism of Qingshi Anti-itch Ointment (青石止痒软膏, QAO) in the treatment of psoriasis. MethodsForty mice were randomly divided into four groups, blank group, model group, calcipotriol group and QAO group, with 10 mice in each group. Except for the blank group, psoriasis was induced by applying imiquimod cream to the dorsal skin. After modeling for 6 hours daily, the calcipotriol group and QAO group were treated with 0.5 g of calcipotriol ointment or 0.5 g of QAO, respectively, applied to the treated dorsal skin. The blank group and the model group received no treatment. The skin lesions were observed, and the psoriasis area and severity index (PASI) score was assessed every other day. After 7 days, Hematoxylin and Eosin (HE) staining was performed on dorsal skin tissue to observe pathological changes. The levels of interleukin 1β (IL-1β) and interleukin 18 (IL-18) were determined by enzym-linked immunosorbent assay (ELISA). The protein levels of Caspase-1,Pro-Caspase-1, gasdermin D (GSDMD) and gasdermin-D-N (GSDMD-N) were detected by Western Blot (WB). The protein levels of GSDMD were observed by immunohistochemistry. ResultsCompared with the blank group, the model group mice showed redness, erythema, and white scales on their skin, with histological observations indicating epidermal thickening, elongated spines, and infiltration of inflammatory cells. The PASI scores of the skin tissue on days 1, 3, 5, and 7 were elevated; the IOD and AOD values of GSDMD protein increased; the protein levels of Caspase-1, Pro-Caspase-1,GSDMD, GSDMD-N, and IL-1β and IL-18 were significantly elevated (P<0.05 or P<0.01). Compared with the model group, the QAO group and calcipotriol group showed lighter skin lesions; the PASI scores on day 5 and day 7 in the QAO group, and on day 3, 5, and 7 in the calcipotriol group, were reduced; the IOD and AOD values of GSDMD protein, and the protein level of Caspase-1, GSDMD, and GSDMD-N, as well as level of IL-18 and IL-1β decreased in both groups; in the calcipotriol group, Pro-Caspase-1 protein level also decreased (P<0.05 or P<0.01). Compared with the calcipotriol group, the QAO group showed slightly redder skin, more obvious thickening of the stratum corneum, and less capillary dilation; the PASI scores on day 3 and day 7 increased, while the score on day 5 was reduced; the protein level of Pro-Caspase-1, GSDMD, GSDMD-N, and the level of IL-18 and IL-1β were increased in the QAO group (P<0.05). ConclusionQAO can effectively relieve psoriasis dermatitis in mice. Its potential mechanism may be related to the regulation of the Caspase-1/GSDMD protein pathway, down-regulation of IL-18 and IL-1β levels, and alleviation of pyroptosis.
5.Adverse reaction analysis of drug-induced liver injury
Yan ZHANG ; Yanjun LI ; Jiahui LIU ; Jiao DENG ; Yuan YUAN ; Jingyi ZHANG
Journal of Pharmaceutical Practice and Service 2025;43(1):26-29
Objective To analyze the adverse reaction reports (ADRs) of drug-induced liver injury in recent ten years, explore the characteristics and related rules of drug-induced liver injury, and provide reference for clinical safe drug use. Methods ADRs in our hospital from 2011 to 2021 which belonged to drug-induced liver injuries were collected, and Pareto analysis was carried on. Results In 259 ADR reports, the most common type of drug-induced liver injury was hepatocellular injury (37.84%). The age of drug-induced liver injury was mainly over 46 years, totaling 195 (75.28%). Drugs were mainly distributed in cardiovascular system medicine (44.02%), anti-infective medicine (23.94%)and anti-tumor medicine (11.58%). Among the cardiovascular drugs, atorvastatin calcium 40mg and over 40mg were the highest proportion, with 53 cases (46.49%). The main anti-infectious drugs were cephalosporins (29.03%), carbapenem (19.35%), antifungal (17.74%)and quinolones (11.29%). Adverse reactions occurred within 6 days (69.88%), the duration of adverse reactions was 1-2 weeks (31.66%), and most patients were improved (47.88%) or cured (37.07%). Conclusion For middle-aged and elderly patients, when the application of cardiovascular system drugs, anti-infective drugs or anti-tumor drugs, it is necessary to monitor the liver function changes of patients for at least 6 days. If there are abnormalities, the drugs should be stopped or given treatment in time, to avoid the progress of drug-induced liver injury.
6.Effect and Mechanism of Wulingsan Decoction in Protecting Blood Brain Barrier and Ameliorating Cerebral Edema after Intracerebral Hemorrhage in Mice
Damei TAO ; Huihong LI ; Xiaoqing ZHENG ; Yunfei DENG ; Wei WEI ; Xiehua XUE
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(4):1-9
ObjectiveTo study the effect of Wulingsan on cerebral edema after intracerebral hemorrhage (ICH) in mice and explore the treatment mechanism. MethodsThe mouse model of ICH was established by injection of collagenase into the caudate nucleus. Mice were randomly assigned into the following groups: sham, ICH, intervention before modeling with low-dose and high-dose (3.69, 11.07 g·kg-1, respectively) Wulingsan, and intervention after modeling with high-dose Wulingsan. The modified neurological severity score (mNSS) was recorded, and the small animal MRI T2 sequential scanning was performed to measure the volume of cerebral hemorrhage after the modeling of ICH in each group. The Y-maze test, open field test, and Morris water maze test were conducted to evaluate the neurological behaviors of mice in each group. Hematoxylin-eosin staining was employed to observe the pathological changes in the brain tissue. Immunohistochemistry was employed to observe the expression of aquaporin 4 (AQP4), neuronal nuclei (NeuN), and glial fibrillary acidic protein (GFAP) in the brain tissue. Western blot was employed to determine the protein levels of AQP4, Claudin-5, and zonula occludens-1 (ZO-1) in the hematoma area. ResultsCompared with the sham group, the ICH group showed increases in the mNSS, the cerebral hemorrhage volume, and the escape latency in the Morris water maze test (P<0.01), decreases in the times of touching the platform and times of entering the quadrant where the platform was located in the Morris water maze test, and reductions in the spontaneous alternation rate in the Y-maze test and the ratio of distance of center travel to total travel distance in the open field test (P<0.01). Moreover, pathological changes such as cell disarrangement, cell space enlargement, and cell swelling were observed in the ICH group. Immunohistochemistry results showed that the ICH group had higher proportions of AQP4- and GFAP-positive cells and lower proportion of NeuN-positive cells than the sham group (P<0.01). Compared with the sham group, the ICH group showed an up-regulated protein level of AQP4 and down-regulated protein levels of Claudin-5 and ZO-1 (P<0.01). Compared with the ICH group, the intervention with Wulingsan decreased the mNSS, the volume of cerebral hemorrhage, and the escape latency in the Morris water maze test (P<0.05, P<0.01), while increasing the times of touching the platform and times of entering the quadrant where the platform was located in the Morris water maze test, the spontaneous alternation rate in the Y-maze test, and the ratio of distance of center travel to total travel distance in the open field test (P<0.05, P<0.01). Furthermore, the intervention with Wulingsan alleviated the pathological changes in the brain tissue after ICH, decreased the proportion of AQP4- and GFAP-positive cells (P<0.01), increased the proportion of NeuN-positive cells (P<0.01), down-regulated the protein level of AQP4 (P<0.01), and up-regulated the protein levels of Claudin-5 and ZO-1 (P<0.01). ConclusionThe intervention with Wulingsan could reduce the neural function score and the cerebral hemorrhage volume, up-regulate the expression of Claudin-5 and ZO-1, and down-regulate the expression of AQP4 to ameliorate the neurological function defect and cerebral edema after ICH, thereby protecting the brain.
7.Evaluation of Anti-osteoporosis Activity and Hepatotoxicity of Xianling Gubao Based on Zebrafish Model
Qiuman LI ; Yue QIAN ; Zixuan ZHU ; Yuan SONG ; Qian DENG ; Shengyun DAI ; Chongjun ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(4):87-94
ObjectiveTo investigate the association and translational mechanism between the hepatotoxicity of Xianling Gubao (XLGB) and its treatment of osteoporosis based on a zebrafish model. MethodsZebrafish were randomly selected four days after fertilization (4 dpf) and exposed to different concentrations of XLGB (0.7,0.35 mg·L-1) for 96 h. At the endpoint of the exposure, the mortality rates of zebrafish in the treatment groups of different concentrations were counted, and the "dose-toxicity" curves were plotted. The 10% sublethal concentration (LC10) was calculated. The liver area, acridine orange staining, and pathological tissue sections of transgenic zebrafish [CZ16 (gz15Tg.Tg (fabp 10a: ds Red; ela31: EGFP)] were used as indicators to confirm the hepatic damage caused by the sublethal concentration of XLGB. By using the prednisolone (PNSL)-induced osteoporosis model of zebrafish, the anti-osteoporosis activity of XLGB was evaluated by using the area of skull stained by alizarin red and the cumulative optical density value as indicators. Then, the toxicity difference of XLGB on the liver of zebrafish in healthy and osteoporotic states was compared, and the mechanism of the translational action of the toxicity of XLGB was predicted based on network pharmacology and real-time polymerase chain reaction(Real-time PCR). ResultsThe LC10 of XLGB on zebrafish (8 dpf) was 0.7 mg·L-1. Compared with the blank group, the sublethal concentration (LC10=0.7 mg·L-1, 1/2 LC10=0.35 mg·L-1) of XLGB induced an increase in the number of apoptosis of hepatocytes in a dose-dependent manner, and the tissue arrangement of the liver was disordered and loose. The vacuoles were obvious, and the fluorescence area of the liver was significantly reduced (P<0.01). Compared with the blank group, the mineralized area and cumulative optical density value of zebrafish skull in the PNSL model group were significantly reduced (P<0.01), and those in the 0.7,0.35 mg·L-1 XLGB treatment group were significantly increased compared with the model group (P<0.01). Most importantly, 0.7 mg·L-1 XLGB had no significant effect on the liver of zebrafish in the osteoporosis disease model compared with the blank group. The results of network pharmacology and real-time PCR experiments showed that the toxic transformation of XLGB might be related to the differences in the expression levels of key targets, such as tumor protein 53 (TP53), cysteine aspartic acid specific protease-3(Caspase-3), interleukin(IL)-6, and alkaline phosphatase(ALP) in different organismal states. ConclusionUnder certain conditions, XLGB has hepatotoxicity in normal zebrafish, but under osteoporotic conditions, XLGB not only exerts significant anti-osteoporosis activity but also alleviates hepatotoxicity significantly, which provides a reference for the safe clinical use of XLGB and real evidence for the theories of traditional Chinese medicine of attacking poison with poison and of treating disease with corresponding drugs without damage to the body.
8.Insights on Peripheral Blood Biomarkers for Parkinson’s Disease
Yu-Meng LI ; Jing-Kai LIU ; Zi-Xuan CHEN ; Yu-Lin DENG
Progress in Biochemistry and Biophysics 2025;52(1):72-87
Parkinson’s disease (PD) is a common neurodegenerative disorder with profound impact on patients’ quality of life and long-term health, and early detection and intervention are particularly critical. In recent years, the search for precise and reliable biomarkers has become one of the key strategies to effectively address the clinical challenges of PD. In this paper, we systematically evaluated potential biomarkers, including proteins, metabolites, epigenetic markers, and exosomes, in the peripheral blood of PD patients. Protein markers are one of the main directions of biomarker research in PD. In particular, α‑synuclein and its phosphorylated form play a key role in the pathological process of PD. It has been shown that aggregation of α-synuclein may be associated with pathologic protein deposition in PD and may be a potential marker for early diagnosis of PD. In terms of metabolites, uric acid, as a metabolite, plays an important role in oxidative stress and neuroprotection in PD. It has been found that changes in uric acid levels may be associated with the onset and progression of PD, showing its potential as an early diagnostic marker. Epigenetic markers, such as DNA methylation modifications and miRNAs, have also attracted much attention in Parkinson’s disease research. Changes in these markers may affect the expression of PD-related genes and have an important impact on the onset and progression of the disease, providing new research perspectives for the early diagnosis of PD. In addition, exosomes, as a potential biomarker carrier for PD, are able to carry a variety of biomolecules involved in intercellular communication and pathological regulation. Studies have shown that exosomes may play an important role in the pathogenesis of PD, and their detection in blood may provide a new breakthrough for early diagnosis. It has been shown that exosomes may play an important role in the pathogenesis of PD, and their detection in blood may provide new breakthroughs in early diagnosis. In summary, through in-depth evaluation of biomarkers in the peripheral blood of PD patients, this paper demonstrates the important potential of these markers in the early diagnosis of PD and in the study of pathological mechanisms. Future studies will continue to explore the clinical application value of these biomarkers to promote the early detection of PD and individualized treatment strategies.
9.Traditional Chinese Medicine Intervention in Depression Based on Signaling Pathway Regulation: A Review
Jinjiang XU ; Li WU ; Qi ZHANG ; Yasheng DENG ; Jingjing XIE ; Haobin CHEN ; En ZHAO ; Man ZHANG ; Jianye DAI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):319-328
Depression is a common psychiatric disorder characterized by persistent low mood or mental disorders. Current treatments primarily focus on regulating neurotransmitter levels, but their effectiveness is limited. The mechanisms underlying its onset are complex, and there is no unified consensus. Abnormal signaling pathway transmission plays a crucial role in the development of depression, involving multiple pathways, including Toll-like receptor 4/nucleotide-binding oligomerization domain-like receptor protein 3 (TLR4/NLRP3), nuclear factor-κB (NF-κB), Janus kinase/signal transducer and activator of transcription (JAK/STAT), mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK), brain-derived neurotrophic factor/tyrosine kinase receptor B (BDNF/TrkB), cyclic AMP/protein kinase A/cAMP response element-binding protein (cAMP/PKA/CREB), and others. Traditional Chinese medicine(TCM) is based on a holistic approach and the principle of treatment based on the differentiation of syndromes, regulating the balance of multiple systems and organ functions from a macroscopic perspective. This approach has shown unique advantages in the treatment of depression. TCM attributes the onset of depression to dysfunction of the organ systems, involving liver Qi stagnation, heart spirit deficiency, kidney essence depletion, and spleen dysfunction. TCM compound treatments focus on soothing the liver, strengthening the spleen, calming the heart, and replenishing essence, with formulas such as Xiaoyaosan, Zishui Qinggan Yin, and Chahu Jia Guizhi Longgu Muli Tang. The active components of Chinese herbs mainly aim to tonify and regulate Qi, such as salidroside, ginsenoside Rb1, astragaloside, and muscone. External TCM treatments, primarily acupuncture, aim to open the orifices and invigorate the spirit. Acupoints such as Baihui, Shenting, and Yintang are commonly used. Additionally, massage and moxibustion therapy can intervene in depression by regulating signaling pathways. This article reviews the core role of signaling pathways in the development of depression and the mechanism of TCM regulation of signaling pathways to intervene in depression, aiming to discover new therapeutic approaches that can improve the symptoms of depressed patients.
10.Factors influencing repeat blood donor lapsing in Guangzhou: based on the zero-inflated poisson regression model
Rongrong KE ; Guiyun XIE ; Xiaoxiao ZHENG ; Yingying XU ; Xiaochun HONG ; Shijie LI ; Yongshi DENG ; Jinyu SHEN ; Jinyan CHEN ; Jian OUYANG
Chinese Journal of Blood Transfusion 2025;38(1):73-78
[Objective] To analyze the influencing factors of repeat blood donor lapsing using a zero-inflated poisson regression model (ZIP). [Methods] The blood donation behavior of 12 498 whole blood donors from 2020 was tracked until December 31, 2023. The factors influencing the frequency of blood donations in a given year was analyzed using ZIP, and donors with 0 blood donation in that year were considered to have lapsed. The changes in relevant influencing factors associated with each blood donation were measured and modeled for analysis. [Results] The zero-inflated part of ZIP showed that the risk of lapsing of male blood donors was 2.24 times that of female blood donors (OR 95% CI:1.864-2.696, P<0.001); the risk of lapsing of the 35-44 age group and over 45 age group was respectively 40% (OR 95% CI:0.455-0.790, P<0.001) and 61%(OR 95% CI:0.268-0.578, P<0.001) lower than that of the under 25 age group; the risk of lapsing for those who have donated blood twice and ≥3 times was respectively 50% (OR 95% CI:0.405-0.609, P<0.001) and 81% (OR 95% CI:0.154-0.225, P<0.001) lower than that of first-time donors; the risk of lapsing of those with junior high or high school education was 1.2 times that of those with a college degree or higher (OR 95% CI:1.033-1.384, P<0.05); the risk of lapsing for the divorced group was 2.02 times that of the married group (OR 95% CI:1.445-2.820, P<0.001); the risk of lapsing for those with an income (Yuan) of 10 000 to 50 000, 50 000 to 100 000 and more than 100 000 was respectively 0.67 (OR 95% CI:0.552-0.818, P<0.001), 0.72 (OR 95% CI:0.591-0.884, P=0.002) and 0.67 (OR 95% CI:0.535-0.834, P<0.001) times that of those with an income (Yuan) of less than 10 000. The results of the Poisson part are consistent with the results of the zero-inflated part in terms of age and education level. [Conclusion] Blood donor lapsing is overall related to factors such as gender, age, donation frequency, education, marital status and family income. It's essential to care for those blood donors prone to lapse to retain more regular blood donors.

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