1.Exploring Chemical Constituent Distribution in Blood/Brain(Hippocampus) and Emotional Regulatory Effect of Raw and Vinegar-processed Products of Citri Reticulatae Pericarpium Viride
Yi BAO ; Yonggui SONG ; Qianmin LI ; Zhifu AI ; Genhua ZHU ; Ming YANG ; Huanhua XU ; Qin ZHENG ; Yiting HUANG ; Zihan GAO ; Dan SU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):189-197
ObjectiveTo investigate the migration and distribution characteristics of chemical constituents in blood and hippocampal tissues before and after vinegar processing of Citri Reticulatae Pericarpium Viride(CRPV), and to explore the potential material basis and mechanisms underlying their regulatory effects on emotional disorders by comparing the effects of raw and vinegar-processed products of CRPV. MethodsUltra-performance liquid chromatography-quadrupole-time-of-flight mass spectrometry(UPLC-Q-TOF-MS/MS) was employed to characterize and identify the chemical constituents of raw and vinegar-processed products of CRPV extracts, as well as their migrating components in blood and hippocampal tissues after oral administration. Reference standards, databases, and relevant literature were utilized for compound annotation, with data processing performed using PeakView 1.2 software. Seventy male C57BL/6 mice were randomly divided into seven groups, including the blank group, model group, diazepam group(2.5 mg·kg-1), raw CRPV low/high dose groups(0.6, 1.2 g·kg-1), and vinegar-processed CRPV low/high dose groups(0.6, 1.2 g·kg-1), with 10 mice per group. Except for the blank group, all other groups underwent chronic restraint stress(2 h·d-1) for 20 d. Each drug-treated group received oral administration at the predetermined dose starting 10 d after modeling, with a total treatment duration of 10 d. Following model-based drug administration, mice underwent open-field, forced swimming, and elevated plus maze tests. After anesthesia with isoflurane, whole brains were collected from each group of mice, and hippocampi were dissected. Reactive oxygen species(ROS) level in hippocampal tissues was quantified by enzyme-linked immunosorbent assay(ELISA). Hematoxylin-eosin(HE) staining was used to observe hippocampal tissue morphology. Immunofluorescence was performed to detect neuronal nuclei(NeuN) and peroxisome proliferator-activated receptor alpha(PPARα) expressions in hippocampal tissue. Then, pharmacodynamic evaluations were conducted to assess the effects of raw and vinegar-processed CRPV on mood disorders, exploring the potential mechanisms. ResultsVinegar processing caused significant changes in the chemical composition of CRPV, with 18 components showing increased relative content and 35 components showing decreased relative content. The primary changes occurred in flavonoid compounds, including 20 flavonoids, 20 flavonoid glycosides, 3 triterpenes, 3 phenolic acids, 1 alkaloid, and 6 other compounds. Twenty-one components were detected in blood(15 methoxyflavones, 4 flavonoid glycosides, and 2 phenolic acids), with 17 shared between raw and vinegar-processed CRPV. Seven components reached hippocampal tissues(all common to both forms). In regulating emotional disorders, Vinegar-processed CRPV exhibited superior antidepressant-like effects compared to raw products. HE staining revealed that both treatments improved hippocampal neuronal morphology, particularly in the damaged CA1 and CA3 regions. Immunofluorescence and ELISA analyses demonstrated that both raw and vinegar-processed CRPV significantly modulated NeuN and PPARα expressions in hippocampal tissue while alleviating oxidative stress induced by excessive ROS(P<0.05). ConclusionThe chemical composition of CRPV undergoes changes after vinegar processing, but the migrating components in blood and hippocampus are primarily methoxyflavonoids. These components may serve as the potential material basis for activating the PPARα pathway, thereby negatively regulating ROS generation in the hippocampus, reducing oxidative stress, and promoting the development of NeuN-positive neurons. These findings provide experimental evidence for enhancing quality standards, pharmacodynamic material research, and active drug development of raw and vinegar-processed CRPV.
2.Syndrome Differentiation and Treatment of Polycystic Ovary Syndrome with Classical Formula: A Review
Kening GUO ; Zihan ZHU ; Zhenliang WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(21):231-240
Polycystic ovarian syndrome (PCOS) is a common endocrine and metabolic disease mainly occurring among women of childbearing age. Its main symptoms include menstrual disorders, acne, hirsutism, infertility, oily skin, acanthosis nigricans, and obesity. Currently, the etiology and pathogenesis of PCOS remain unclear. Classical formulas, which have rigorous compatibility, concise composition, precise alignment with syndromes, and definitive therapeutic effects, demonstrate unique practical and scientific value in the treatment of PCOS. These formulas exhibit significant clinical efficacy, mild adverse effects, and sustained therapeutic outcomes. To explore the current status and mechanisms of classical formulas in treating PCOS, on the basis of Zhang Zhongjing's academic thoughts on gynecological diseases, this paper reviewed the relevant literature on the treatment of PCOS with classical formulas in recent years. The findings reveal that the pathogenesis of PCOS predominantly involves a combination of internal deficiency and superficial excess, closely related to dysfunction of the liver, spleen, and kidney. The root cause lies in deficiency, and on this basis, there are also symptoms of qi stagnation, blood stasis, phlegm obstruction, and dampness encumbrance. Commonly used classical formulas for treating this disease include Guizhi Fuling pills, Danggui Shaoyao powder, Wenjing decoction, and Jingui Shenqi pills. These classical formulas have good clinical efficacy in treating PCOS. Their mechanisms of action may be related to improving serum levels of sex hormones, increasing the dominant follicle diameter and endometrial thickness, alleviating insulin resistance, lowering glucose and lipid metabolism, inhibiting oxidative and inflammatory reactions in the ovarian tissue, regulating the intestinal flora, correcting the flora disorder, protecting the intestinal barrier function, and regulating the phosphatidylinositol 3-kinase/protein kinase B signaling pathway. The above research results can help doctors use classical formulas flexibly, broaden diagnostic and therapeutic approaches for PCOS and provide ideas for improving the traditional Chinese medicine diagnosis and treatment plan for PCOS.
3.Syndrome Differentiation and Treatment of Polycystic Ovary Syndrome with Classical Formula: A Review
Kening GUO ; Zihan ZHU ; Zhenliang WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(21):231-240
Polycystic ovarian syndrome (PCOS) is a common endocrine and metabolic disease mainly occurring among women of childbearing age. Its main symptoms include menstrual disorders, acne, hirsutism, infertility, oily skin, acanthosis nigricans, and obesity. Currently, the etiology and pathogenesis of PCOS remain unclear. Classical formulas, which have rigorous compatibility, concise composition, precise alignment with syndromes, and definitive therapeutic effects, demonstrate unique practical and scientific value in the treatment of PCOS. These formulas exhibit significant clinical efficacy, mild adverse effects, and sustained therapeutic outcomes. To explore the current status and mechanisms of classical formulas in treating PCOS, on the basis of Zhang Zhongjing's academic thoughts on gynecological diseases, this paper reviewed the relevant literature on the treatment of PCOS with classical formulas in recent years. The findings reveal that the pathogenesis of PCOS predominantly involves a combination of internal deficiency and superficial excess, closely related to dysfunction of the liver, spleen, and kidney. The root cause lies in deficiency, and on this basis, there are also symptoms of qi stagnation, blood stasis, phlegm obstruction, and dampness encumbrance. Commonly used classical formulas for treating this disease include Guizhi Fuling pills, Danggui Shaoyao powder, Wenjing decoction, and Jingui Shenqi pills. These classical formulas have good clinical efficacy in treating PCOS. Their mechanisms of action may be related to improving serum levels of sex hormones, increasing the dominant follicle diameter and endometrial thickness, alleviating insulin resistance, lowering glucose and lipid metabolism, inhibiting oxidative and inflammatory reactions in the ovarian tissue, regulating the intestinal flora, correcting the flora disorder, protecting the intestinal barrier function, and regulating the phosphatidylinositol 3-kinase/protein kinase B signaling pathway. The above research results can help doctors use classical formulas flexibly, broaden diagnostic and therapeutic approaches for PCOS and provide ideas for improving the traditional Chinese medicine diagnosis and treatment plan for PCOS.
4.Effect of Shufeng Jiedu Capsules on Relieving Influenza Virus Pneumonia by Suppressing TLR/NF-κB Pathway in Respiratory Epithelial Cells
Zihan GENG ; Lei BAO ; Shan CAO ; Qiang ZHU ; Jun PAN ; Shuran LI ; Ronghua ZHAO ; Jing SUN ; Yanyan BAO ; Shaoqiu MU ; Xiaolan CUI ; Shanshan GUO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(24):61-68
ObjectiveTo investigate the possible mechanism of Shufeng Jiedu capsules (SFJD) in alleviating influenza A (H1N1) virus pneumonia and focus on its effect on Toll-like receptor (TLR) signaling pathway in respiratory epithelial cells. MethodsA mouse model of viral pneumonia was established via the A/PR/8/34 (PR8) strain of influenza A virus. Mice were randomly divided into a normal group, a PR8 infection (PR8) group, and an SFJD group (8.4 g·kg-1), with 10 mice in each group. The day of infection was designated as day 1. The SFJD group was administered intragastrically at a volume of 20 mL·kg-1 daily, while the normal and PR8 groups were given an equal volume of deionized water. Micro-computed tomography (Micro-CT) was performed on day 5, and the mice were dissected to collect their lungs, after which the lung index was calculated to verify the therapeutic effect of SFJD. Single-cell sequencing was used to analyze the differentially expressed genes in respiratory epithelial cells. Multiplex fluorescence immunohistochemistry was employed to detect the expression of TLR, tumor necrosis factor receptor-associated factor 6 (TRAF6), and myeloid differentiation factor 88 (MyD88) proteins in epithelial cell adhesion molecule (EpCAM)-positive cells, and the proportion of respiratory epithelial cells expressing TLR pathway proteins was calculated. Respiratory epithelial cells were then sorted by flow cytometry, and Western blot was used to detect the expression of TLR, MyD88, TRAF6, Toll-interleukin receptor domain-containing adaptor inducing interferon-β (TRIF), inhibitor of κB kinase α (IKKα), and nuclear factor-κB (NF-κB) in the sorted epithelial cells. Enzyme-linked immunosorbent assay (ELISA) was used to measure the levels of interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) in lung tissue. ResultsAt the transcriptional level, SFJD reversed the expression of TLR signaling pathway genes in respiratory epithelial cells, downregulating multiple TLR signaling pathway-related genes (P<0.01). At the protein level, SFJD significantly reduced the proportion of respiratory epithelial cells expressing TLR3 (P<0.05), the expression levels of TLR2, TLR3, TLR4, TRIF, TRAF6, IKKα, and NF-κB in epithelial cells(P<0.05, P<0.01), as well as the levels of pro-inflammatory cytokines IL-1β and TNF-α in lung tissue (P<0.01). ConclusionSFJD may alleviate viral pneumonia by suppressing the expression of TLR in respiratory epithelial cells and their subsequent signaling cascades.
5.Research progress on active ingredients of traditional Chinese medicine improving metabolic dysfunction-associated steatotic liver disease via regulating lipid metabolism
Hailan LI ; Zihan ZHU ; Yue LI ; Mengxue XIAO ; Yuanyuan ZHANG ; Junping KOU
Journal of China Pharmaceutical University 2025;56(4):507-514
Metabolic dysfunction-associated steatotic liver disease (MASLD) is the most common chronic liver disease with high global prevalence and long course, which affects more than 30% of the population and seriously endangers human health. Lipid metabolism plays an important role in the occurrence and development of MASLD. An increasing number of studies have shown that active ingredients in traditional Chinese medicine can regulate lipid metabolism to improve MASLD. Due to the obvious advantages of multi-target regulation and fewer side effects, the active ingredients have shown great potential and value for application. However, the pathological mechanism of MASLD is intricate and the active ingredients of traditional Chinese medicine can improve MASLD from multiple aspects, there is currently a lack of systematic discussion on lipid metabolism. Therefore, this review focuses on lipid metabolism and reviews the latest research progress of active ingredients from traditional Chinese medicine in ameliorating MASLD from the aspects of lipid uptake, lipid synthesis, lipid oxidation, lipid secretion, etc., in order to provide more theoretical references for active ingredients of traditional Chinese medicine in regulating lipid metabolism to improve MASLD.
6.A study on the association between insulin resistance and genome-wide DNA methylation based on Shanghai monozygotic twins
Jingyuan FENG ; Rongfei ZHOU ; Hongwei LIU ; Zihan HU ; Fei WU ; Huiting WANG ; Junhong YUE ; Zhenni ZHU ; Fan WU
Chinese Journal of Epidemiology 2024;45(7):932-940
Objective:To explore the association between insulin resistance (IR) and genome-wide DNA methylation based on Shanghai twin study.Methods:Monozygotic twins (MZ) from Shanghai were recruited during 2012-2013, 2017-2018, and 2022-2023. Data were collected by questionnaire survey, physical examination and laboratory tests. Genome-wide DNA methylation was quantified. Generalized linear mixed effect model was applied to analyze the association between methylation level at each site and homeostatic model assessment 2-insulin resistance (HOMA2-IR). Non-paired and paired designs were used to assess the association between DNA methylation and phenotype of IR. Cluster analysis was conducted to identify the clusters of top significant sites. Generalized linear regression was performed to examine the differential methylation patterns from clusters.Results:A total of 100 MZ pairs were included in this study. Hypermethylated cg10535199-2q23.1 ( β=0.74%, P=1.51×10 -7, OR=1.06, 95% CI: 1.03-1.09) and ch.17.49619327- SPOP ( β=0.23%, P=7.54×10 -7, OR=1.17, 95% CI: 1.08-1.28) were identified with suggestive significance. After correcting for multiple testing, no sites reached genome-wide significance. There was no statistical significance in the paired analysis. Two clusters with hypomethylated ( β=-0.39%, P<0.001) and hypermethylated ( β=0.47%, P<0.001) patterns were observed for HOMA2-IR. Conclusions:IR was significantly associated with DNA methylation, and genetic factors might contribute to the association.
7.Comparison of clinical outcomes of forearm radial flap and anterolateral thigh flap for repairing soft tissue defects after oral cancer resection
Jiang ZHU ; Wushuang XU ; Zihan MA ; Yucheng XIANG ; Wanying SHI ; Senbin WU ; Donghui SONG
Chinese Journal of Plastic Surgery 2024;40(9):992-1001
Objective:To compare the efficacy of radial forearm flap and anterolateral thigh flap in repairing soft tissue defects after oral cancer surgery and to explore their indications.Methods:A retrospective analysis was conducted on clinical data of patients with oral cancer treated at the Department of Stomatology, Affiliated Hospital of Nantong University, from May 2019 to February 2023. Patients were divided into two groups based on the repair method: the radial forearm flap group and the anterolateral thigh flap group. The groups were compared in the following aspects. (1) Surgical parameters including defect area after oral cancer resection, flap area, flap preparation time, operation time, and length of hospital stay. (2) Inflammatory markers (interleukin-6 and C-reactive protein levels) measured 1 day before surgery and 1 day after surgery. (3) Flap survival rate was calculated. (4) Complication rates was calculated in the flap donor area and infection rates in the oral recipient area within 6 months postoperatively. (5) Six months postoperatively, the patient’s oral function was assessed by a physician using the University of Washington quality of life scale (UW-QOL). The evaluation included assessments of oral opening, speech, and eating functions. Each parameter was scored on a scale of 0 to 10 (higher scores indicated better recovery). (6) Quality of life was assessed using the 36-item short form health survey scale(SF-36) at 2, 4 and 6 months postoperatively, with scores ranging from 0 to 100 (higher scores indicated better quality of life). (7) Patient satisfaction was assessed at 6 months postoperatively, with satisfaction levels categorized as satisfied, basically satisfied, and dissatisfied. The satisfaction rate was calculated as (satisfied + basically satisfied ) cases / total cases in each group × 100%. Statistical analysis was performed using SPSS 22.0. Measurement data were expressed as Mean±SD, and comparisons between groups were conducted using t-tests. Count data were expressed as cases and (or) percentages, and comparisons were made using chi-square test. P<0.05 was considered statistically significant. Results:The radial forearm flap group included 48 cases (32 males, 16 females), aged (49.3±5.0) years, with a body mass index (BMI) of (23.0±1.1) kg/m 2 and a disease course of (6.5±2.1) months. The group had 21 cases of tongue cancer, 12 of floor of mouth cancer, and 15 of buccal cancer, including 40 squamous cell carcinomas and 8 basal cell carcinomas. The anterolateral thigh flap group included 32 cases (20 males, 12 females), aged (50.1±5.0) years, with a BMI of (23.0±1.0) kg/m 2 and a disease course of (7.0±2.2) months. The group had 16 cases of tongue cancer, 7 cases of floor of mouth cancer, and 9 cases of buccal cancer, including 27 squamous cell carcinomas and 5 basal cell carcinomas. There were no significant differences in gender, age, BMI, disease course, tumor location, or pathological type between the two groups ( P>0.05). The defect area after oral cancer resection was smaller in the radial forearm flap group[ (39.0±1.3) cm 2 ] compared to the anterolateral thigh flap group[ (40.3±2.2) cm 2] ( t=3.32, P=0.001). There were no significant differences in flap area, flap preparation time, or length of hospital stay between the two groups ( P>0.05). The operation time was shorter in the radial forearm flap group [(5.1±1.1) h] compared to the anterolateral thigh flap group [(6.8±2.8) h] ( t=0.26, P<0.001). There were no significant differences in interleukin-6 and C-reactive protein levels between the two groups 1 day before surgery and 1 day after surgery ( P>0.05). The flap survival rates were 97.9% (47/48) in the radial forearm flap group and 93.8% (30/32) in the anterolateral thigh flap group, with no significant difference( P>0.05). Postoperative donor site complications mainly included infection, pigmentation, itching, etc. The overall incidence of complications in the donor site of the radial forearm flap [33.3% (16/48)] was higher than that in the anterolateral thigh flap group [12.5% (4/32)], and the difference was statistically significant ( χ2=4.44, P=0.035). There was no significant difference in infection rates in the oral recipient area between the two groups ( P>0.05). Six months postoperatively, the average scores for oral opening, speech, and eating functions were above 7 in both groups, with no significant differences ( P>0.05). Quality of life scores improved over time in both groups, with average scores above 90 at 6 months postoperatively, and no significant differences at any time point ( P>0.05). The patient satisfaction rate was 91.7% (44/48) in the radial forearm flap group and 90.6% (29/32) in the anterolateral thigh flap group, with no significant difference ( P>0.05). Conclusion:Both radial forearm flap and anterolateral thigh flap can effectively repair soft tissue defects after oral cancer resection, significantly improving patients’oral function. The anterolateral thigh flap provides sufficient tissue volume and is suitable for patients with larger defect areas. The radial forearm flap is suitable for patients with a smaller defect area after oral cancer resection. Its surgical procedure is relatively less complex and offers an advantage in reducing surgery time. However, the donor site complications are higher with the radial forearm flap compared to the anterolateral thigh flap.
8.Comparison of clinical outcomes of forearm radial flap and anterolateral thigh flap for repairing soft tissue defects after oral cancer resection
Jiang ZHU ; Wushuang XU ; Zihan MA ; Yucheng XIANG ; Wanying SHI ; Senbin WU ; Donghui SONG
Chinese Journal of Plastic Surgery 2024;40(9):992-1001
Objective:To compare the efficacy of radial forearm flap and anterolateral thigh flap in repairing soft tissue defects after oral cancer surgery and to explore their indications.Methods:A retrospective analysis was conducted on clinical data of patients with oral cancer treated at the Department of Stomatology, Affiliated Hospital of Nantong University, from May 2019 to February 2023. Patients were divided into two groups based on the repair method: the radial forearm flap group and the anterolateral thigh flap group. The groups were compared in the following aspects. (1) Surgical parameters including defect area after oral cancer resection, flap area, flap preparation time, operation time, and length of hospital stay. (2) Inflammatory markers (interleukin-6 and C-reactive protein levels) measured 1 day before surgery and 1 day after surgery. (3) Flap survival rate was calculated. (4) Complication rates was calculated in the flap donor area and infection rates in the oral recipient area within 6 months postoperatively. (5) Six months postoperatively, the patient’s oral function was assessed by a physician using the University of Washington quality of life scale (UW-QOL). The evaluation included assessments of oral opening, speech, and eating functions. Each parameter was scored on a scale of 0 to 10 (higher scores indicated better recovery). (6) Quality of life was assessed using the 36-item short form health survey scale(SF-36) at 2, 4 and 6 months postoperatively, with scores ranging from 0 to 100 (higher scores indicated better quality of life). (7) Patient satisfaction was assessed at 6 months postoperatively, with satisfaction levels categorized as satisfied, basically satisfied, and dissatisfied. The satisfaction rate was calculated as (satisfied + basically satisfied ) cases / total cases in each group × 100%. Statistical analysis was performed using SPSS 22.0. Measurement data were expressed as Mean±SD, and comparisons between groups were conducted using t-tests. Count data were expressed as cases and (or) percentages, and comparisons were made using chi-square test. P<0.05 was considered statistically significant. Results:The radial forearm flap group included 48 cases (32 males, 16 females), aged (49.3±5.0) years, with a body mass index (BMI) of (23.0±1.1) kg/m 2 and a disease course of (6.5±2.1) months. The group had 21 cases of tongue cancer, 12 of floor of mouth cancer, and 15 of buccal cancer, including 40 squamous cell carcinomas and 8 basal cell carcinomas. The anterolateral thigh flap group included 32 cases (20 males, 12 females), aged (50.1±5.0) years, with a BMI of (23.0±1.0) kg/m 2 and a disease course of (7.0±2.2) months. The group had 16 cases of tongue cancer, 7 cases of floor of mouth cancer, and 9 cases of buccal cancer, including 27 squamous cell carcinomas and 5 basal cell carcinomas. There were no significant differences in gender, age, BMI, disease course, tumor location, or pathological type between the two groups ( P>0.05). The defect area after oral cancer resection was smaller in the radial forearm flap group[ (39.0±1.3) cm 2 ] compared to the anterolateral thigh flap group[ (40.3±2.2) cm 2] ( t=3.32, P=0.001). There were no significant differences in flap area, flap preparation time, or length of hospital stay between the two groups ( P>0.05). The operation time was shorter in the radial forearm flap group [(5.1±1.1) h] compared to the anterolateral thigh flap group [(6.8±2.8) h] ( t=0.26, P<0.001). There were no significant differences in interleukin-6 and C-reactive protein levels between the two groups 1 day before surgery and 1 day after surgery ( P>0.05). The flap survival rates were 97.9% (47/48) in the radial forearm flap group and 93.8% (30/32) in the anterolateral thigh flap group, with no significant difference( P>0.05). Postoperative donor site complications mainly included infection, pigmentation, itching, etc. The overall incidence of complications in the donor site of the radial forearm flap [33.3% (16/48)] was higher than that in the anterolateral thigh flap group [12.5% (4/32)], and the difference was statistically significant ( χ2=4.44, P=0.035). There was no significant difference in infection rates in the oral recipient area between the two groups ( P>0.05). Six months postoperatively, the average scores for oral opening, speech, and eating functions were above 7 in both groups, with no significant differences ( P>0.05). Quality of life scores improved over time in both groups, with average scores above 90 at 6 months postoperatively, and no significant differences at any time point ( P>0.05). The patient satisfaction rate was 91.7% (44/48) in the radial forearm flap group and 90.6% (29/32) in the anterolateral thigh flap group, with no significant difference ( P>0.05). Conclusion:Both radial forearm flap and anterolateral thigh flap can effectively repair soft tissue defects after oral cancer resection, significantly improving patients’oral function. The anterolateral thigh flap provides sufficient tissue volume and is suitable for patients with larger defect areas. The radial forearm flap is suitable for patients with a smaller defect area after oral cancer resection. Its surgical procedure is relatively less complex and offers an advantage in reducing surgery time. However, the donor site complications are higher with the radial forearm flap compared to the anterolateral thigh flap.
9.Dynamic processes of hematopoietic and immune reconstitution after irradiated mice receiving bone marrow transplantation
Hanjing LIAO ; Yanggan LUO ; Zihan LU ; Zhenqing LIU ; Doudou HAO ; Manjing HUANG ; Zhixiang ZHU
Chinese Journal of Pharmacology and Toxicology 2024;38(9):661-671
OBJECTIVE To optimize hematopoietic stem cell transplantation therapy and provide support for drug research by investigating the dynamic process of hematopoietic and immune system reconstitution after bone marrow transplantation(BMT)in mice.METHODS CD45.2+C57BL/6 mice were used as recipient mice and randomly divided into the normal control group and transplantation group,with 30 mice in each.The transplantation group was irradiated by a lethal dose of cobalt-60 rays.Bone marrow cells were prepared from CD45.1+C57BL/6 mice and transfused into recipient mice through the tail vein.Peripheral blood,spleens,lymph nodes,thymuses and bone marrow were collected at 1,2,4,8 and 16 weeks after transplantation.Blood routine examination was performed with peripheral blood and total cell numbers in suspensions of other organs were counted by an automated cell counter.Cell classification analysis of white blood cells in peripheral blood,cell suspensions of other organs was performed by flow cytometry.RESULTS Four weeks after BMT,the numbers of white blood cells and red blood cells in peripheral blood of recipient mice returned to the same level of or higher level than normal control(P<0.05).Although the number of platelets recovered significantly,it was still mark-edly lower than that of normal control until 16 weeks post BMT(P<0.05).In addition,the percentages of myeloid leukocytes and B cells in peripheral blood,spleens,lymph nodes,and bone marrow,as well as megakaryocytes and erythrocyte progenitor cells in bone marrow also returned to normal,and the majority of myeloid leukocytes and B cells were CD45.1+cells from the donors.Eight weeks after BMT,T cells in peripheral blood,spleens,lymph nodes,thymuses,and bone marrow of recipient mice returned to normal,and CD45.1+T cells were dominating.CONCLUSION The hematopoietic and immune reconstitution of recipient mice is nearly completed eight weeks after BMT.However,the reconstruction speed of different kinds of cells and the reconstruction status of same kind of cell in different organs vary widely.
10.A summary of the best evidence for malnutrition management among maintenance hemodialysis patients
Zhaohua ZOU ; Wei QING ; Maocai ZHU ; Jiquan ZHANG ; Zihan YI
Modern Clinical Nursing 2024;23(6):37-46
Objective To retrieve,evaluate and summarize the relevant evidence on malnutrition management among maintenance hemodialysis(MHD)patients to provide clinical medical staff with evidence-based guidelines for managing malnutrition in MHD patients.Methods Using the"6S"pyramid model of evidence,We searched UpToDate,BMJ best clinical practice,the Australian JBI evidence-based health care centre database(JBI),Medive,the International Guidelines Collaborative Network(GIN),Agency for Healthcare Research and Quality Network,the UK National Institute of Clinical Medicine Guidance Library(NICE),Scottish Inter-College Guide Collaboration network,the Ontario Registered Nurses Association(RNAO),Guidelines Network of International Society of Nephrology,American Nephrology Foundation Guidenet,British Nephrology Society,Society of Nephrology,Chinese Medical Association,Improving Kidney Disease Outcomes Worldwide,International Society of Renal Nutrition and Metabolism,American Society for Parenteral Enteral Nutrition,European Society for Clinical Nutrition and Metabolism,Chinese Nutrition Society,PubMed,Web of Science,Embase,Cochrane Library,CNKI,Wanfang,VIP and CBM,to collect relevant guidelines,expert consensus,clinical decision,evidence summary,recommended practice,best practice,systematic evaluation and clinical practice,from the establishment to the date of April 10th,2023,for literature on malnutrition management of MHD patients.The literature included guidelines,expert consensuses,clinical decision-making studies,evidence summaries,recommended practices,best practices,and systematic reviews.Two researchers independently evaluated,extracted,and integrated the evidence.The evidence was graded by the evidence pre-grading system of the Evidence-based Healthcare Center of Joanna Briggs Institute(JBI).Results A total of 16 articles were included and summarized,comprising 5 guidelines,3 expert consensuses,1 clinical decision-making study,1 evidence summary,and 6 systematic reviews.Thirty-nine pieces of the best evidence were integrated,covering 5 key aspects(39 evidences):screening and assessment,nutritional requirements,nutritional supplement,other interventions,and monitoring and education.Conclusions The best evidence summary of malnutrition management among MHD patients in this study is scientifically rigorous and systematic.Clinical medical staff can use the best evidence to develop personalized malnutrition management programs for MHD patients.

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