1.Zhuluan Decoction Ameliorates Premature Ovarian Insufficiency by Inhibiting Excessive Autophagy of KGN Through Regulation of PI3K/Akt/mTOR Pathway
Yao CHEN ; Sainan TIAN ; Jing ZENG ; Xingxing YI ; Wen'e LIU ; Lei LEI ; Li TANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):89-98
ObjectiveTo elucidate the underlying mechanism through which Zhuluan decoction suppresses excessive autophagy in human ovarian granulosa cells (KGN) and ameliorates premature ovarian insufficiency (POI) via the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) signaling pathway. MethodsThe optimal concentration of cyclophosphamide for inducing a POI model in KGN cells was identified via the cell counting kit-8 (CCK-8) assay. Subsequently, the impacts of varying concentrations of Zhuluan decoction-containing serum on the viability of the KGN cell model were assessed. After the optimal drug concentration was determined, KGN cells were categorized into the following groups: blank control (20% blank serum), model (20% blank serum + 5 μmol·L-1 cyclophosphamide), Zhuluan decoction-containing serum (20% Zhuluan decoction-containing serum + 5 μmol·L-1 cyclophosphamide), autophagy inhibitor (20% blank serum + 5 μmol·L-1 cyclophosphamide + 20 μmol·L-1 chloroquine phosphate), autophagy inhibitor + Zhuluan decoction-containing serum (20% Zhuluan decoction-containing serum + 5 μmol·L-1 cyclophosphamide + 20 μmol·L-1 chloroquine phosphate), and estradiol valerate (20% estradiol valerate-containing serum + 5 μmol·L-1 cyclophosphamide). Following 48 hours of incubation, flow cytometry was utilized to measure the apoptosis rate of KGN cells in each group. Western blotting was employed to quantify the protein levels of PI3K, phosphorylated (p)-Akt, Akt, p-mTOR, and mTOR, along with the expression levels of autophagy-related proteins such as Beclin1, autophagy-related 5 homolog (ATG5), and microtubule-associated protein 1 light chain 3 (LC3), in each group. Additionally, monodansylcadaverine (MDC) staining was performed to evaluate the extent of autophagy in each group. ResultsIncubation of KGN cells with 5 μmol·L-1 cyclophosphamide for 48 h successfully established a POI model, marked by a significant inhibition of KGN cell proliferation. Notably, the inhibitory effect of cyclophosphamide on KGN cell proliferation exhibited a positive correlation with its concentration. Zhuluan decoction-containing serum at 20% and 30% promoted cell proliferation and mitigated the inhibitory effect of cyclophosphamide on KGN cell proliferation, with comparable therapeutic efficacy observed at both concentrations. Compared with the blank control group, the model group displayed an elevated apoptosis rate (P<0.01), reduced protein levels of PI3K, p-Akt, and p-mTOR (P<0.01), increased protein levels of Beclin1, LC3, and ATG5 (P<0.01), no significant alterations in the protein levels of Akt and mTOR, and an enhanced MDC autophagy fluorescence intensity (P<0.01). In comparison to that the model group, the apoptosis rates in the blank control group, model group, Zhuluan decoction-containing serum group, autophagy inhibitor group, autophagy inhibitor + Zhuluan decoction-containing serum group, and estradiol valerate group all reduced (P<0.05, P<0.01), with the most pronounced reduction observed in the autophagy inhibitor + Zhuluan decoction-containing serum group. The protein levels of PI3K, p-Akt, and p-mTOR were higher in other groups than in the model group (P<0.05, P<0.01), being the highest in the autophagy inhibitor + Zhuluan decoctio-containing serum group (P<0.01). The protein levels of Beclin1 and ATG5 were lower in other groups than in the model group (P<0.05, P<0.01). The expression level of LC3 declined in the Zhuluan decoction-containing serum group and the estradiol valerate group (P<0.05, P<0.01), while it decreased without statistical significance in the autophagy inhibitor group and the autophagy inhibitor + Zhuluan decoction-containing serum group. ConclusionZhuluan decoction may activate the PI3K/Akt/mTOR pathway to inhibit excessive autophagy and counteract the detrimental effects of cyclophosphamide on the KGN cell model, thus managing POI.
2.Treatment of Colorectal Cancer with Traditional Chinese Medicine Based on Hippo Signaling Pathway: A Review
Shuo ZENG ; Suqin HU ; Yang HU ; Lei LUO ; Mingyan LI ; Qinsheng ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):297-305
Colorectal cancer, a leading malignant gastrointestinal tumor globally in terms of incidence and mortality, has seen a consistent annual rise in newly diagnosed cases. While conventional therapies like radiotherapy, chemotherapy, and surgery are available, problems such as lack of early diagnosis, poor prognosis, and drug resistance remain significant burdens for patients. Given the complex and diverse pathogenesis of colorectal cancer, there is an urgent clinical need for safe, effective, reliable, and multi-targeted therapeutic strategies. The Hippo signaling pathway, closely linked to mechanisms like tumorigenesis, cancer cell invasion, migration, and drug resistance, extensively participates in the occurrence and development of colorectal cancer, so targeting the signaling pathway for cancer prevention and treatment has become a crucial research direction in recent years. Traditional Chinese medicine (TCM) offers multi-faceted, multi-pathway, and multi-target advantages and becomes an important therapy for colorectal cancer by enhancing patients' immunity, improving the life quality, and prolonging survival. Studies show that the active components of TCM, including flavonoids, terpenoids, phenols, alkaloids, quinones, lignans, and saponins, as well as TCM compounds such as modified Sijunzi decoction, Jiedu Sangen decoction, Jianpi Jiedu compound, and Quyu Jiedu decoction, exhibit significant targeting effects on the Hippo signaling pathway. These TCMs can exert an anti-colorectal cancer effect through various mechanisms, such as inducing cancer cell autophagy and apoptosis, inhibiting epithelial-mesenchymal transition, reversing drug resistance of the tumor, and blocking the cancer cell cycle. This paper reviewed and analyzed Chinese and international research on the action mechanisms of TCM in regulating the Hippo signaling pathway for the prevention and treatment of colorectal cancer with a comprehensive overview presentation, aiming to provide new references and ideas for the clinical application of TCM and the development of new pharmacological agents in the prevention and treatment of colorectal cancer.
3.Zhuluan Decoction Ameliorates Premature Ovarian Insufficiency by Inhibiting Excessive Autophagy of KGN Through Regulation of PI3K/Akt/mTOR Pathway
Yao CHEN ; Sainan TIAN ; Jing ZENG ; Xingxing YI ; Wen'e LIU ; Lei LEI ; Li TANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):89-98
ObjectiveTo elucidate the underlying mechanism through which Zhuluan decoction suppresses excessive autophagy in human ovarian granulosa cells (KGN) and ameliorates premature ovarian insufficiency (POI) via the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) signaling pathway. MethodsThe optimal concentration of cyclophosphamide for inducing a POI model in KGN cells was identified via the cell counting kit-8 (CCK-8) assay. Subsequently, the impacts of varying concentrations of Zhuluan decoction-containing serum on the viability of the KGN cell model were assessed. After the optimal drug concentration was determined, KGN cells were categorized into the following groups: blank control (20% blank serum), model (20% blank serum + 5 μmol·L-1 cyclophosphamide), Zhuluan decoction-containing serum (20% Zhuluan decoction-containing serum + 5 μmol·L-1 cyclophosphamide), autophagy inhibitor (20% blank serum + 5 μmol·L-1 cyclophosphamide + 20 μmol·L-1 chloroquine phosphate), autophagy inhibitor + Zhuluan decoction-containing serum (20% Zhuluan decoction-containing serum + 5 μmol·L-1 cyclophosphamide + 20 μmol·L-1 chloroquine phosphate), and estradiol valerate (20% estradiol valerate-containing serum + 5 μmol·L-1 cyclophosphamide). Following 48 hours of incubation, flow cytometry was utilized to measure the apoptosis rate of KGN cells in each group. Western blotting was employed to quantify the protein levels of PI3K, phosphorylated (p)-Akt, Akt, p-mTOR, and mTOR, along with the expression levels of autophagy-related proteins such as Beclin1, autophagy-related 5 homolog (ATG5), and microtubule-associated protein 1 light chain 3 (LC3), in each group. Additionally, monodansylcadaverine (MDC) staining was performed to evaluate the extent of autophagy in each group. ResultsIncubation of KGN cells with 5 μmol·L-1 cyclophosphamide for 48 h successfully established a POI model, marked by a significant inhibition of KGN cell proliferation. Notably, the inhibitory effect of cyclophosphamide on KGN cell proliferation exhibited a positive correlation with its concentration. Zhuluan decoction-containing serum at 20% and 30% promoted cell proliferation and mitigated the inhibitory effect of cyclophosphamide on KGN cell proliferation, with comparable therapeutic efficacy observed at both concentrations. Compared with the blank control group, the model group displayed an elevated apoptosis rate (P<0.01), reduced protein levels of PI3K, p-Akt, and p-mTOR (P<0.01), increased protein levels of Beclin1, LC3, and ATG5 (P<0.01), no significant alterations in the protein levels of Akt and mTOR, and an enhanced MDC autophagy fluorescence intensity (P<0.01). In comparison to that the model group, the apoptosis rates in the blank control group, model group, Zhuluan decoction-containing serum group, autophagy inhibitor group, autophagy inhibitor + Zhuluan decoction-containing serum group, and estradiol valerate group all reduced (P<0.05, P<0.01), with the most pronounced reduction observed in the autophagy inhibitor + Zhuluan decoction-containing serum group. The protein levels of PI3K, p-Akt, and p-mTOR were higher in other groups than in the model group (P<0.05, P<0.01), being the highest in the autophagy inhibitor + Zhuluan decoctio-containing serum group (P<0.01). The protein levels of Beclin1 and ATG5 were lower in other groups than in the model group (P<0.05, P<0.01). The expression level of LC3 declined in the Zhuluan decoction-containing serum group and the estradiol valerate group (P<0.05, P<0.01), while it decreased without statistical significance in the autophagy inhibitor group and the autophagy inhibitor + Zhuluan decoction-containing serum group. ConclusionZhuluan decoction may activate the PI3K/Akt/mTOR pathway to inhibit excessive autophagy and counteract the detrimental effects of cyclophosphamide on the KGN cell model, thus managing POI.
4.Treatment of Colorectal Cancer with Traditional Chinese Medicine Based on Hippo Signaling Pathway: A Review
Shuo ZENG ; Suqin HU ; Yang HU ; Lei LUO ; Mingyan LI ; Qinsheng ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):297-305
Colorectal cancer, a leading malignant gastrointestinal tumor globally in terms of incidence and mortality, has seen a consistent annual rise in newly diagnosed cases. While conventional therapies like radiotherapy, chemotherapy, and surgery are available, problems such as lack of early diagnosis, poor prognosis, and drug resistance remain significant burdens for patients. Given the complex and diverse pathogenesis of colorectal cancer, there is an urgent clinical need for safe, effective, reliable, and multi-targeted therapeutic strategies. The Hippo signaling pathway, closely linked to mechanisms like tumorigenesis, cancer cell invasion, migration, and drug resistance, extensively participates in the occurrence and development of colorectal cancer, so targeting the signaling pathway for cancer prevention and treatment has become a crucial research direction in recent years. Traditional Chinese medicine (TCM) offers multi-faceted, multi-pathway, and multi-target advantages and becomes an important therapy for colorectal cancer by enhancing patients' immunity, improving the life quality, and prolonging survival. Studies show that the active components of TCM, including flavonoids, terpenoids, phenols, alkaloids, quinones, lignans, and saponins, as well as TCM compounds such as modified Sijunzi decoction, Jiedu Sangen decoction, Jianpi Jiedu compound, and Quyu Jiedu decoction, exhibit significant targeting effects on the Hippo signaling pathway. These TCMs can exert an anti-colorectal cancer effect through various mechanisms, such as inducing cancer cell autophagy and apoptosis, inhibiting epithelial-mesenchymal transition, reversing drug resistance of the tumor, and blocking the cancer cell cycle. This paper reviewed and analyzed Chinese and international research on the action mechanisms of TCM in regulating the Hippo signaling pathway for the prevention and treatment of colorectal cancer with a comprehensive overview presentation, aiming to provide new references and ideas for the clinical application of TCM and the development of new pharmacological agents in the prevention and treatment of colorectal cancer.
5.Artificial intelligence-based quality control of hand hygiene for hospital-acquired infection
Xuchen YANG ; Jingwen LI ; Wan ZHANG ; Shasha FENG ; Min ZENG ; Jianan SHI ; Youqiong CHEN ; Tao ZHENG ; Xun YAO
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(02):241-247
Objective To explore an artificial intelligence (AI)-based method for automated hand hygiene monitoring and to compare the effectiveness of three algorithms (UniFormerV2, TDN, C3D) in recognizing hand hygiene steps in surgical settings, thereby aiding hospital infection control. Methods From April to October 2024, we non-invasively collected 641 video recordings of healthcare staff performing hand hygiene at four-bay scrub sinks in two tertiary hospitals using overhead HD cameras. The dataset was annotated by five trained experts for model training and validation. Results Following training on 385 samples, internal validation (n=119) showed the C3D model achieved 81% accuracy, 87% recall, and an 83% F1-score. The TDN model achieved 93%, 91%, and 92% for the same metrics. The UniFormerV2 model outperformed both, with an accuracy, recall, and F1-score of 93%—an improvement of over 10 percentage points compared to traditional CNNs (TDN, C3D). It also achieved an 84% accuracy in external validation, demonstrating strong generalization. Conclusion The UniFormerV2 model is more accurate than CNN-based models for hand hygiene step recognition and shows robust performance in external validation. It presents a viable tool for healthcare facilities to enhance hand hygiene management, ultimately improving medical quality and patient safety.
6.Preventive and therapeutic effect of low-dose corticosteroids on early acute lung injury after thoracoscopic lobectomy
Liqiang XU ; Shaoqiu LI ; Qiang LIU ; Min ZENG ; Weimin LUO
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(03):390-396
Objective To investigate the efficacy of early, short-term, low-dose corticosteroid administration for the prevention and treatment of early acute lung injury (EALI) in patients undergoing thoracoscopic lobectomy. Methods A retrospective analysis was conducted on the clinical data of patients who underwent thoracoscopic lobectomy at the Department of Thoracic and Cardiovascular Surgery, Taihe Hospital, Hubei University of Medicine, from January 2019 to January 2022. Patients were divided into an early steroid therapy group and an observation group based on whether they received corticosteroids in the early postoperative period. In the early steroid therapy group, in addition to standard postoperative care, patients received a low-dose intravenous push of methylprednisolone (80-120 mg/d) for 3 consecutive days. In the observation group, patients received standard postoperative care without intravenous corticosteroids for the first 3 days. Chest plain CT scans were performed on postoperative day (POD) 1 and POD 3 or 4 to evaluate lung injury. CT scores and the incidence of postoperative EALI were recorded. Results A total of 521 patients were included (268 males, 253 females; age range: 11-80 years). There were 318 patients in the observation group and 203 in the early steroid therapy group. On POD 1, the incidence of EALI was 16.0% in the observation group and 13.8% in the early steroid therapy group, with no statistical difference (P=0.486). Correspondingly, there was no statistical difference in chest CT scores among EALI-positive patients between the two groups (P=0.927). On POD 3-4, the incidence of EALI was significantly lower in the early steroid therapy group (22.7%) compared to the observation group (33.6%) (P=0.007). Although chest CT scores among EALI-positive patients were lower in the early steroid therapy group, the difference was not statistically significant (P=0.377). The overall incidence of EALI within the first 4 postoperative days was significantly lower in the early steroid therapy group (26.1%) than in the observation group (37.4%) (P=0.007). Radiological progression (defined as new-onset EALI or progression of existing EALI) occurred in 14.8% of the early steroid therapy group, significantly lower than the 28.9% in the observation group (P<0.001). The early steroid therapy group had a shorter postoperative length of stay (P<0.001), while there was no statistical difference in the incidence of poor wound healing between the groups (P=0.762). Conclusion Early postoperative corticosteroid use effectively reduces the incidence of EALI on POD 3-4, lowers the risk of radiological progression, and decreases the overall incidence of postoperative EALI. This is achieved without prolonging the length of stay or increasing the risk of poor wound healing. Therefore, early administration of low-dose corticosteroids is beneficial in suppressing the occurrence and progression of EALI. Its early use is recommended for patients at high risk for postoperative EALI.
7.Astragali Radix Polysaccharides Promote M2 Polarization of OGD/R-induced BV2 Microglia by Inhibiting TLR4/NF-κB Signaling Pathway
Yanxi LIU ; Lijun ZHANG ; Qiule LI ; Yayu ZENG ; Yanjie HUO ; Xiaodan LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(9):133-143
ObjectiveTo investigate the effects of Astragali Radix polysaccharides (APS) on the polarization of BV2 microglial cells in an oxygen-glucose deprivation/reoxygenation (OGD/R) model through regulation of the Toll-like receptor 4 (TLR4)/nuclear factor-κB (NF-κB) signaling pathway. MethodsThe OGD/R injury model of BV2 microglia was established and divided into blank group, OGD/R group and APS group (0.4 g·L-1 APS). Neuroinflammatory injury was induced by lipopolysaccharide (LPS) and treated with APS. The cells were divided into blank group, LPS group (1 mg·L-1 LPS) and APS group (0.4 g·L-1 APS+1 mg·L-1 LPS). Cell viability was detected using the cell counting kit-8 (CCK-8) assay. Cell morphology was observed under an inverted microscope. Nitric oxide (NO) content in the cell supernatant was determined by the Griess assay. The secretion levels of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, IL-10, and IL-4 were measured by enzyme-linked immunosorbent assay (ELISA). Immunofluorescence (IF) was used to detect the double-positive rates of ionized calcium-binding adapter molecule-1/inducible nitric oxide synthase (Iba-1+/iNOS+) and ionized calcium-binding adapter molecule-1/arginase 1 (Iba-1+/Arg1+), as well as the nuclear translocation rate of nuclear factor-κB p65 (NF-κB p65). Protein expression levels of Iba-1, iNOS, Arg1, TLR4, and NF-κB p65 were detected by Western blot. ResultsIn the OGD/R injury model, compared with the blank control group, BV2 microglial cells in the OGD/R group were activated and exhibited amoeboid morphological changes. The secretion levels of NO, TNF-α, and IL-6 were significantly increased (P<0.01). The double-positive expression rate of Iba-1+/iNOS+ and the protein expression of Iba-1 and iNOS were significantly increased (P<0.01). The nuclear translocation rate of NF-κB p65 and the protein expression levels of TLR4 and NF-κB p65 were significantly increased (P<0.01). The levels of IL-10 and IL-4 were significantly decreased (P<0.01), and the double-positive expression rate of Iba-1+/Arg1+ and Arg1 protein expression were significantly decreased (P<0.01). Compared with the OGD/R group, the APS group (0.4 g·L-1) showed reduced cell activation, significantly decreased secretion levels of NO, TNF-α, and IL-6 (P<0.01), significantly decreased double-positive expression rate of Iba-1+/iNOS+ and relative protein expression of Iba-1 and iNOS (P<0.01), significantly decreased nuclear translocation rate of NF-κB p65 and protein expression levels of TLR4 and NF-κB p65 (P<0.01), significantly increased levels of IL-10 and IL-4 (P<0.01), and significantly increased double-positive expression rate of Iba-1+/Arg1+ and Arg1 protein expression (P<0.01). In the LPS-induced neuroinflammation model, compared with the blank control group, the LPS group showed increased cell activation, significantly increased levels of NO, TNF-α, and IL-6, significantly increased Iba-1+/iNOS+ double-positive expression rate, NF-κB p65 nuclear translocation rate, and protein expression levels of Iba-1, iNOS, TLR4, and NF-κB p65 (P<0.01), while IL-10 and IL-4 levels, Iba-1+/Arg1+ double-positive expression rate, and Arg1 protein expression were significantly decreased (P<0.01). Compared with the LPS group, the APS group showed reduced cell activation, significantly decreased levels of NO, TNF-α, and IL-6, Iba-1+/iNOS+ double-positive expression rate, NF-κB p65 nuclear translocation rate, and protein expression levels of Iba-1, iNOS, TLR4, and NF-κB p65 (P<0.01), while IL-10 and IL-4 levels, Iba-1+/Arg1+ double-positive expression rate, and Arg1 protein expression were significantly increased (P<0.01). ConclusionAPS may reduce microglial activation and promote their polarization toward the M2 phenotype by inhibiting activation of the TLR4/NF-κB signaling pathway, thereby alleviating the neuroinflammatory response induced by OGD/R.
8.Traditional Chinese Medicine Treatment of Colorectal Cancer Based on AMPK Signaling Pathway: A Review
Yang HU ; Suqin HU ; Shuo ZENG ; Lei LUO ; Mingyan LI ; Qinsheng ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(9):266-275
Colorectal cancer is a common malignant tumor of the digestive system. In recent years, its incidence rate and mortality are increasing year by year. Due to the complex pathogenesis and poor prognosis of patients, colorectal cancer poses a serious threat to human physical and mental health. Currently, although Western medicine treatment methods can to some extent inhibit tumor growth and alleviate patient symptoms, postoperative recurrence, metastasis, multiple adverse reactions, and susceptibility to drug resistance are prominent issues, resulting in unsatisfactory overall treatment outcomes. Therefore, exploring more efficient and safe treatment methods has become an urgent task. The adenosine monophosphate-activated protein kinase (AMPK) signaling pathway plays a regulatory role in the growth, differentiation, apoptosis, and autophagy of colorectal cancer cells, and is widely involved in the occurrence and development of colorectal cancer. It is considered an important target for colorectal cancer treatment. Traditional Chinese medicine has unique advantages in the treatment of colorectal cancer, as it can exert its effects through multiple mechanisms and pathways. It can prevent postoperative recurrence and metastasis, reduce adverse reactions to radiotherapy and chemotherapy, and improve patients' quality of life. It has become a key means of treating colorectal cancer. Research has shown that active ingredients in traditional Chinese medicine such as flavonoids, polyphenols, terpenes, and esters, as well as traditional Chinese medicine compounds such as Qingjie Fuzheng Granules and some traditional Chinese medicine extracts, have significant regulatory effects on AMPK and its interaction signaling pathways. They exert their anti-colorectal cancer effects by inducing autophagy and apoptosis in colorectal cancer cells, promoting ferroptosis, inhibiting epithelial-mesenchymal transition, reversing drug resistance, and arresting the cell cycle. This article reviewed and summarized the relevant research on traditional Chinese medicine in the treatment of colorectal cancer in recent years, with a focus on the mechanism of traditional Chinese medicine in regulating the AMPK signaling pathway for the treatment of colorectal cancer. It is expected to provide ideas and references for the development of new drugs for clinical anti-colorectal cancer treatment.
9.A retrospective cohort analysis on the association between blood donation intervals and adverse reactions to blood donation in Shenzhen, China
Li NING ; Yanyan ZHANG ; Jinfeng ZENG ; Jingya HUANG ; Liqin HUANG ; Xuqun WU ; Litao WU
Chinese Journal of Blood Transfusion 2026;39(3):346-352
Objective: To statistically analyze the association between blood donation intervals and the incidence of adverse reactions to blood donation based on blood donor data from Shenzhen. Methods: Basic data and records of adverse reactions to blood donation among voluntary whole blood donors in Shenzhen from January 2017 to June 2025 were extracted. A total of 795 404 whole blood donations were recorded, including 502 743 from males and 292 661 from females, with 1 088 and 751 cases of adverse reactions, respectively. Analyses were performed using R software, including restricted cubic spline (RCS), binary logistic regression, and generalized estimating equations (GEE) to evaluate the correlation between donation intervals and adverse reactions. Results: A total of 1 839 cases of adverse reactions were recorded, accounting for 0.23% of the total donations. Both binary logistic regression analysis and the generalized estimating equations (GEE) model showed that there was no significant difference in the incidence of adverse reactions between male and female donors with an interval of ≥6 months compared to those with an interval of ≥3 months but<6 months. Furthermore, using the 3-5 month interval group as the reference, the analysis indicated that the incidence of adverse reactions significantly increased in males with a 9-12 month interval, while no statistically significant differences were observed across any of the female subgroups. Conclusion: There was no significant correlation between adverse reactions to blood donation and the donation interval. Compared with a donation interval of ≥6 months, an interval of<6 months does not lead to an increase in the incidence of adverse reactions among male or female donors. The findings of this study may help enhance the willingness of blood donors to participate.
10.A retrospective cohort analysis on the association between blood donor age and adverse reactions to blood donation in Shenzhen
Litao WU ; Yanyan ZHANG ; Jinfeng ZENG ; Jingya HUANG ; Liqin HUANG ; Xuqun WU ; Li NING
Chinese Journal of Blood Transfusion 2026;39(3):353-359
Objective: To statistically analyze the association between blood donor age and the incidence of adverse reactions based on whole blood donor data from Shenzhen. Methods: Data on basic characteristics and records of adverse donation reactions among voluntary whole blood donors in Shenzhen from January 2017 to June 2025 were extracted. A total of 795 404 whole blood donations were recorded, including 502 743 from males and 292 661 from females, with 1 088 and 751 cases of adverse reactions, respectively. Analyses were performed using R software, including restricted cubic spline (RCS) analysis, binary logistic regression, and generalized estimating equations (GEE) to evaluate the correlation between donor age and adverse reactions. Results: A total of 1 839 cases of adverse reactions were recorded, accounting for 0.23% of the total donations. Both binary logistic regression and GEE model revealed that, compared with the≤55 years age group, the incidence of adverse reactions was reduced in both male and female donors in the >55 years age group, with the difference being statistically significant in males. Using the <23 years age group as a reference, the incidence of adverse reactions significantly decreased in both male and female donors across the 23-30, 31-40, 41-50, and 51-60 age groups, with the differences being statistically significant. Conclusion: There is a negative correlation between the rate of adverse donation reactions and age, with the incidence of such reactions among whole blood donors over 55 years old being no higher than that among donors aged 55 years or younger. These findings carry positive significance for safeguarding the donation rights of older donors and meeting clinical blood demand.

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