1.Establishment of outcome indicators for the implementation of comprehensive inter-vention for multimorbidity of myopia and obesity among children and adolescents based on the RE-AIM framework
Yihang ZHANG ; Shan CAI ; Ziyue CHEN ; Yunfei LIU ; Jiajia DANG ; Di SHI ; Jiaxin LI ; Tianyu HUANG ; Yi SONG
Journal of Peking University(Health Sciences) 2025;57(3):436-441
Objective:To develop outcome indicators for the implementation of comprehensive inter-ventions targeting the multimorbidity of myopia and obesity in children and adolescents,providing a basis for the co-prevention of multimorbidity and the outcome measurement of implementation research in children and adolescents.Methods:Based on the RE-AIM framework,a preliminary set of indicators was constructed.The Delphi method was employed,with experts scoring and providing feedback on the proposed indicators via questionnaires.After each round of consultation,expert enthusiasm index,authority coefficient,coordination degree,and consensus level were calculated.Expert opinions were col-lected and analyzed to modify,delete,or add indicators based on consultation results and screening crite-ria.Two Delphi rounds were conducted until consensus was achieved.Results:A total of 28 experts par-ticipated actually in both rounds.The Kendall's W coefficients for the two rounds of expert consultation were0.352(x2=413.952,P<0.001)and 0.499(x2=405.044,P<0.001),both statistically sig-nificant.The final outcome indicators for implementation research on comprehensive interventions for myopia and obesity comorbidity in children and adolescents included five primary dimensions with 13 secondary and 20 tertiary indicators.The dimension of reach included the number of children and adoles-cents involved,participant representativeness,and full-course participation representativeness.The di-mension of effectiveness included multimorbidity incidence,myopia incidence,spherical equivalent,body mass index(BMI),overweight and obesity prevalence,waist-to-height ratio,comprehensive health knowledge score,and comprehensive health behavior score.The dimension of adoption covered school representativeness and representativeness of school nurses and teachers involved in implementation.The dimension of implementation included fidelity,content modification,and cost.The dimension of mainte-nance included individual health outcomes and organizational sustainment.Conclusion:This study developed implementation outcome indicators for comprehensive interventions targeting multimorbidity of myopia and obesity among the children and adolescents based on the RE-AIM framework.These indica-tors can serve as a reference for optimizing intervention research strategies related to common multimor-bidity among children and adolescents in China.
2.Research on Historical Evolution and Clinical Application of Shengyutang
Yuning CAO ; Wenpan LIU ; Tianyu MA ; Lanru CHEN ; Jiahao HUANG ; Yonghai MENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(4):235-243
Shengyutang is a famous classical formula of tonic, which is made from Siwutang with Ginseng Radix et Rhizoma and Astragali Radix. It is included in the Catalogue of Ancient Famous Classical Formulas(The First Batch). Based on the Principles of Key Information Research of Ancient Famous Classical Formulas, this paper used bibliometrics to sort out and research the key information of Shengyutang in the aspects of history, composition, origin and processing, dosage, decocting method, efficacy and indications. After research, it has been found that this formula was first recorded in Lanshi Micang written by LI Dongyuan during the Jin dynasty, composed of Rehmanniae Radix, Rehmanniae Radix Praeparata, Chuanxiong Rhizoma, Ginseng Radix et Rhizoma, Astragali Radix and Angelicae Sinensis taproot. The name of the formula passed down through generations was relatively unified, with clear origins and veins. In later generations, this formula was the mainstream, and adjustments were made to the dosage and composition according to the indication. In the formula, Astragalus membranaceus var. mongholicus was selected as the origin of Astragali Radix, and the origins of other medicinal materials were consistent with the 2020 edition of Chinese Pharmacopoeia. Except for Rehmanniae Radix Praeparata, the other medicinal materials were made from raw products, and the dosage form was boiled powder. According to the measurement standard in the Jin dynasty, the recommended usage and dosage were 1.24 g of Rehmanniae Radix, Rehmanniae Radix Praeparata, Chuanxiong Rhizoma, Ginseng Radix et Rhizoma each, 2.07 g of Astragali Radix and Angelicae Sinensis taproot each, crushed into coarse particles that pass through the 4 mesh sieve but can't pass through the 10 mesh sieve, added 1 200 mL of water and boiled to 300 mL, and removed the residue. Shengyutang has the functions of tonifying Qi and blood, and blood intake, treating various sores, and restlessness and insomnia caused by excessive blood flow. In ancient times, this formula was widely used in the treatment of surgical sores, gynecological diseases, deficiency syndrome, etc. In modern clinical practice, it is mostly used to treat gynecological, neurological, musculoskeletal, hematological diseases caused by Qi and blood deficiency. In this paper, the key information of Shengyutang was researched by reviewing relevant ancient literature, in order to provide reference for the modern application and development of this formula.
3.Association between mental health and muscle strength among Chinese adolescents aged 13-18
Chinese Journal of School Health 2025;46(9):1232-1236
Objective:
To explore the association between mental health and muscle strength among Chinese adolescents aged 13- 18, providing a theoretical foundation and intervention strategies for mental health promotion.
Methods:
Data were obtained from the 2019 Chinese National Survey on Students Constitution and Health, including 98 631 Chinese adolescents aged 13- 18. Psychological distress was assessed by using the Kessler Psychological Distress Scale (K10), and mental well being was measured with the Warwick-Edinburgh Mental Well being Scale (WEMWBS). Based on the gender and age specific Z scores of various test items [grip strength, standing long jump, pull ups (for males), and sit ups (for females)], muscle strength index (MSI) was constructed to evaluate the comprehensive level of muscle strength in adolescents. According to the Dual factor Model (DFM) of mental health, participants were categorized into four groups:troubled, symptomatic but content, vulnerable, and complete mental health. Gender differences were analyzed by using Chi-square tests, trends were tested with Cochran-Armitage tests, and multinomial Logistic regression models were applied to assess associations between muscle strength and mental health among adolescents.
Results:
In 2019, 37.4% of Chinese adolescents aged 13-18 were reported of high mental distress, and 59.9% were reported of low mental well being. Boys had significantly lower rates of high mental distress (35.3%) and low mental well being (55.6%) compared to girls (39.4%, 64.3%), and the differences were of statistical significance ( χ 2=176.13, 780.42, both P <0.05). In 2019, the rate of complete mental health among adolescents showed a downward trend with increasing age ( χ 2 trend = 258.47) and a gradual upward trend with increasing muscle strength levels ( χ 2 trend =123.14),and both boys and girls exhibited similar trends ( χ 2 trend =103.83, 168.46; 57.00 , 67.34) (all P <0.05). The results of the unordered multiclass Logistic regression model showed that after controlling for confounding factors such as age and gender, when the completely pathological group as a reference, for every 1 unit increase in MSI in adolescents, the likelihood of being in a completely mental health state increased by 29% ( OR = 1.29); for every unit increase in the Z-score for pull ups, the likelihood of being in a completely mental health state increased by 6% ( OR =1.06) among boys; for every 1 unit increase in sit up Z score, the likelihood of being in a completely mental health state increased by 19% ( OR =1.19) among girls (all P <0.05).
Conclusions
The mental health status of Chinese adolescents is not good enough. Muscle strength is positively associated with mental health.
4.Evolution and development of mental health policies for children and adolescents in China
Chinese Journal of School Health 2025;46(9):1246-1251
Objective:
To systematically review the development and changes in mental health policies within the National Outline for Children s Development in China from 1992 to 2030, providing a reference basis for future formulation of mental health policies among children and adolescent in China.
Methods:
Based on the four editions of the National Outline for Children s Development in China across different periods from 1992 to 2030, word frequency analysis was used to reveal shifts in policy priorities, and an internationally recognized framework for adolescent health policy analysis was applied to conduct a textual review.
Results:
Word frequency analysis revealed that the term "psychological" appeared 6 times in the National Outline for Children s Development in China (2001-2010) but increased to 20 times in the National Outline for Children s Development in China (2021-2030) (abbreviated as the National Outline of 2021), while the term "health" rose from 4 times in the National Outline for Children s Development Plan in China in the 1990s to 68 times in the National Outline of 2021. The scope of mental health policy interventions expanded to encompass five key areas:health, safety, education, welfare and legal protection. Textual analysis highlighted that the policies of the National Outline for Children s Development in China were demand driven, prioritized vulnerable groups and continuously broadened their coverage, emphasizing sustainability and appropriateness, and monitoring/evaluation mechanisms. By 2023, 42.3% of primary schools and 64.8% of secondary schools employed full time mental health education teachers. However, the National Outline for Children s Development in China lacked direct evidence of children and adolescents participation in policy formulation, and publicly available mental health data disaggregated by age and gender remained limited.
Conclusion
Mental health policies of children and adolescents in China have evolved from nonexistence to gradual refinement, yet institutionalized channels for youth involvement in policy development and evaluation remain insufficient, and transparency in age and gender specific mental health data needs improvement.
5.Ziyuglycoside II suppressed the progression of osteosarcoma by coordinating estrogen-related receptor gamma and p53 signaling pathway.
Hang DU ; Dongjin WU ; Tianyu ZHANG ; Ying ZHONG ; Kaiyi WU ; Xin GUO ; Lisong SHENG ; Nana HUANG ; Chunzheng GAO ; Rong SUN
Chinese Journal of Natural Medicines (English Ed.) 2025;23(3):354-367
Osteosarcoma (OS) is the most prevalent primary malignant bone tumor affecting children and adolescents. Despite ongoing research efforts, the 5-year survival rate has remained stagnant for many years, highlighting the critical need for novel drug development to enhance current treatment protocols. Ziyuglycoside II (ZYG II), a triterpenoid saponin extracted from S. officinalis, has recently demonstrated antitumor properties. This study evaluates the antitumor effect of ZYG II on osteosarcoma and elucidates its mechanism of action through the co-regulation of p53 and estrogen-related receptor gamma (ESRRG), which inhibits disease progression. The research employs in vitro experiments using multiple established osteosarcoma cell lines, as well as in vivo studies utilizing a nude mouse model of orthotopic xenograft osteosarcoma. Additionally, ESRRG shRNA was used to construct stable ESRRG-reducing OS cell lines to investigate the molecular mechanism by which ZYG II exerts its anti-osteosarcoma effects through the co-regulation of ESRRG and p53. Results indicate that ZYG II administration led to decreased OS cell viability and reduced tumor volumes. Furthermore, cell cycles were arrested at the G0/G1 phase, while the proportion of apoptotic cells increased. Expression of p53, ESRRG, p21, Bax, Cleaved Caspase-9, and Cleaved Caspase-3 proteins increased, while expression of CDK4, Cyclin D1, and Bcl-2 proteins decreased. Multiple ZYG II and ESRRG docking patterns were simulated through molecular docking. Comparing the pharmacodynamic response of ZYG II to OS cell lines with reduced ESRRG and normal expression demonstrated that ZYG II inhibits osteosarcoma progression, induces cell cycle arrest, and promotes cell apoptosis through the coordination of p53 and ESRRG. In conclusion, ZYG II inhibits osteosarcoma progression, leads to cell cycle arrest, and promotes cell apoptosis through synergistic regulation of p53 and ESRRG.
Osteosarcoma/physiopathology*
;
Tumor Suppressor Protein p53/genetics*
;
Humans
;
Animals
;
Saponins/chemistry*
;
Bone Neoplasms/physiopathology*
;
Signal Transduction/drug effects*
;
Cell Line, Tumor
;
Mice, Nude
;
Mice
;
Apoptosis/drug effects*
;
Receptors, Estrogen/genetics*
;
Mice, Inbred BALB C
;
Female
;
Male
;
Xenograft Model Antitumor Assays
6.High-throughput single-microbe RNA sequencing reveals adaptive state heterogeneity and host-phage activity associations in human gut microbiome.
Yifei SHEN ; Qinghong QIAN ; Liguo DING ; Wenxin QU ; Tianyu ZHANG ; Mengdi SONG ; Yingjuan HUANG ; Mengting WANG ; Ziye XU ; Jiaye CHEN ; Ling DONG ; Hongyu CHEN ; Enhui SHEN ; Shufa ZHENG ; Yu CHEN ; Jiong LIU ; Longjiang FAN ; Yongcheng WANG
Protein & Cell 2025;16(3):211-226
Microbial communities such as those residing in the human gut are highly diverse and complex, and many with important implications for health and diseases. The effects and functions of these microbial communities are determined not only by their species compositions and diversities but also by the dynamic intra- and inter-cellular states at the transcriptional level. Powerful and scalable technologies capable of acquiring single-microbe-resolution RNA sequencing information in order to achieve a comprehensive understanding of complex microbial communities together with their hosts are therefore utterly needed. Here we report the development and utilization of a droplet-based smRNA-seq (single-microbe RNA sequencing) method capable of identifying large species varieties in human samples, which we name smRandom-seq2. Together with a triple-module computational pipeline designed for the bacteria and bacteriophage sequencing data by smRandom-seq2 in four human gut samples, we established a single-cell level bacterial transcriptional landscape of human gut microbiome, which included 29,742 single microbes and 329 unique species. Distinct adaptive response states among species in Prevotella and Roseburia genera and intrinsic adaptive strategy heterogeneity in Phascolarctobacterium succinatutens were uncovered. Additionally, we identified hundreds of novel host-phage transcriptional activity associations in the human gut microbiome. Our results indicated that smRandom-seq2 is a high-throughput and high-resolution smRNA-seq technique that is highly adaptable to complex microbial communities in real-world situations and promises new perspectives in the understanding of human microbiomes.
Humans
;
Gastrointestinal Microbiome/genetics*
;
Bacteriophages/physiology*
;
High-Throughput Nucleotide Sequencing
;
Sequence Analysis, RNA/methods*
;
Bacteria/virology*
7.Role of fibrinogen in perioperative neurocognitive disorder in aged mice
Xueji WANG ; Sufang JIANG ; Jiaqi LI ; Lichao DI ; Peiying HUANG ; Tianyu CAO ; Lining HUANG
Chinese Journal of Anesthesiology 2025;45(2):156-162
Objective:To evaluate the role of fibrinogen in perioperative neurocognitive disorder (PND) in aged mice.Methods:Sixty SPF healthy male C57BL/6J mice, aged 16-18 months, weighing 25-30 g, were divided into 4 groups ( n=15 each) using a random number table method: control group (group C), PND group (group P), urokinase group (group U) and PND+ urokinase group (group PU). Abdominal surgery was performed under 3% sevoflurane anesthesia to establish the mouse model of PND. In PU group, urokinase 20 000 U/kg was intraperitoneally administered at 1 h after surgery, once a day, for 5 consecutive days. In group U, urokinase was intraperitoneally injected once a day for 5 consecutive days without anesthesia and surgery. The cognitive function was assessed after operation using the novel object recognition test (discrimination index) and the Morris water maze test (frequency of crossing the original platform and percentage of the time spent in the target quadrant). The expression of occludin, claudin-5, fibrinogen and ionized calcium-binding adapter molecule 1 (Iba-1) and CD11b in hippocampal tissues was detected using Western blot, the area of fibrinogen extravascular deposits was measured and the morphology of microglia was observed using the immunofluorescence staining, and the mRNA expression of pro-inflammatory factors (interleukin-1beta, tumor necrosis factor-alpha, and inducible nitric oxide synthase), anti-inflammatory factors (interleukin-4 and arginase-1), and chemokines (chemokine 2 and chemokine ligand 10) in hippocampal tissues was detected by quantitative real-time polymerase chain reaction after surgery. Results:Compared with group C, the parameters of cognitive function were significantly decreased, the expression of occludin and claudin-5 was down-regulated, the expression of fibrinogen was up-regulated, the area of fibrinogen extravascular deposits was increased, the number of branches was decreased and the average process length was shortened in the microglia around fibrinogen deposits, the expression of Iba-1 and CD11b was up-regulated, the mRNA expression of proinflammatory cytokines and chemokines was up-regulated, and the mRNA expression of the anti-inflammatory factors was down-regulated in group PND ( P<0.05). Compared with group PND, the parameters of cognitive function were significantly increased, the expression of occludin and claudin-5 was up-regulated, the expression of fibrinogen was down-regulated, the area of fibrinogen extravascular deposits was decreased, the number of branches was increased and the average process length was prolonged in the microglia around fibrinogen deposits, the expression of Iba-1 and CD11b was down-regulated, the mRNA expression of proinflammatory cytokines and chemokines was down-regulated, and the mRNA expression of the anti-inflammatory factors was up-regulated in group PU ( P<0.05). Conclusions:Fibrinogen deposits in the brain parenchyma through the damaged blood-brain barrier after anesthesia and surgery and participates in the development of PND, and the underlying mechanism may be related to the promotion of microglial activation and the induction of neuroinflammation in aged mice.
8.Mechanism of ω-3 polyunsaturated fatty acids preventing sevoflurane-induced neurotoxicity in neonatal mice: phosphorylated Tau glymphatic system clearance pathway
Tianyu CAO ; Lichao DI ; Peiying HUANG ; Longlu CAO ; Sufang JIANG ; Xueji WANG ; Jiaqi LI ; Lining HUANG
Chinese Journal of Anesthesiology 2025;45(2):170-177
Objective:To evaluate the relationship between the mechanism of ω-3 polyunsaturated fatty acids (ω-3 PUFAs) preventing sevoflurane-induced neurotoxicity and phosphorylated Tau glymphatic system clearance pathway in neonatal mice.Methods:Eighteen C57BL/6 pregnant mice were used in this study and subjected to 2 feeding regiments using the random number table method. Twelve mice were selected to receive a standard diet, and 6 mice were selected to receive a diet supplemented with fish oil (ω-3 polyunsaturated fatty acids [300 mg was added to every 20 g of standard diet from the 2nd day of gestation to 14 days after parturition). The healthy neonatal mice of both sexes, aged 6 days, weighing 3-5 g, were selected after parturition. Forty-eight neonatal pups from 6 pregnant mice that were fed a standard diet were assigned to control group (C group), 48 neonatal pups from 6 pregnant mice that were fed a standard diet were assigned to sevoflurane group (S group), and 48 neonatal pups from pregnant mice that were fed a diet supplemented with fish oil were assigned to ω-3 PUFAs plus sevoflurane group (PS group) using the random number table method. All the offspring mice in all groups were breastfed until 21 days of birth and then were housed in separate cages from their mothers after 21 days of birth and provided with ad libitum access to standard food. S group and PS group inhaled 3% sevoflurane and 40% oxygen for 2 h daily on postnatal days 6, 7 and 8. C group inhaled only 40% oxygen at the same flow rate. Y maze test was performed at postnatal day 33 to assess the spatial memory and cognitive function. The rotarod test was performed at postnatal day 35 to assess the fine motor coordination. The influx and efflux functions of the glymphatic system were assessed through intracisternal tracer infusion with the fluorescent tracer at postnatal days 14 and 35. The influx function was evaluated by the percentage of the area of tracer penetration 30 min after injection, while the efflux function was determined by the percentage of the residual area of the tracer 90 min after injection. The mice were sacrificed and the hippocampal tissue was obtained at postnatal day 14 for determination of the expression of phosphorylated Tau protein at serine 202 site and threonine 205 site (Tau-PS202/PT205) and total Tau protein by Western blot. The cerebrospinal fluid (CSF) was collected at postnatal day 14 for determination of the concentration of phosphorylated Tau protein by enzyme-linked immunosorbent assay. The mice were sacrificed and the hippocampal tissue was obtained at postnatal day 35 for determination of the expression of caspase-3, caspase-9 and cytochrome C (Cyt c) (by Western blot) and the apoptosis rate of neurons (by TUNEL).Results:Compared with C group, the time of staying at the new arm and in the rotarod test was significantly shortened, the percentage of new arm movement distance was decreased, the percentage of tracer penetration area was decreased at postnatal day 14, the percentage of residual tracer area was increased at postnatal day 14, the expression of Tau-PS202/PT205 in the hippocampus was up-regulated at postnatal day 14, the concentration of phosphorylated Tau protein in CSF was reduced at postnatal day 14, the apoptosis rate of hippocampal neurons was increased at postnatal day 35 ( P<0.05), and the expression of caspase-3, caspase-9 and Cyt c in the hippocampus was up-regulated at postnatal day 35 in S group ( P<0.05). Compared with S group, the time of staying at the new arm and in the rotarod test was significantly prolonged, the percentage of new arm movement distance was increased, the percentage of tracer penetration area was increased at postnatal day 14, the percentage of residual tracer area was decreased at postnatal day 14, the expression of Tau-PS202/PT205 in the hippocampus was down-regulated at postnatal day 14, the concentration of phosphorylated Tau protein in CSF was increased at postnatal day 14, the apoptosis rate of hippocampal neurons was decreased at postnatal day 35, and the expression of caspase-3, caspase-9 and Cyt c in the hippocampus was down-regulated at postnatal day 35 in PS group ( P<0.05). Conclusions:The mechanism by which ω-3 PUFAs prevents cerebral neurotoxicity induced by repeated neonatal sevofurane exposure may be related to the enhancement of phosphorylated Tau protein clearance via the glymphatic system.
9.Mechanism of ω-3 polyunsaturated fatty acids in preventing brain neurotoxicity caused by multiple sevoflurane anesthesia in neonatal mice: PPARγ/PGC1α signaling pathway
Tianyu CAO ; Lichao DI ; Peiying HUANG ; Longlu CAO ; Sufang JIANG ; Xueji WANG ; Jiaqi LI ; Lining HUANG
Chinese Journal of Anesthesiology 2025;45(3):304-310
Objective:To evaluate the relationship between the mechanism of ω-3 polyunsaturated fatty acids (ω-3 PUFAs) in preventing brain neurotoxicity caused by multiple sevoflurane anesthesia and peroxisome proliferator-activated receptor gamma (PPARγ)/peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α) signaling pathway in neonatal mice.Methods:This study was performed in 2 parts. Part Ⅰ Using a random number table method, 6 C57BL/6 pregnant mice were assigned to receive a standard diet, 3 pregnant mice were assigned to receive a diet supplemented with fish oil from day 2 of gestation to day 14 after parturition (ω-3 PUFAs 300 mg were added to every 20 g of conventional diet). Healthy C57BL/6 mice of both sexes, aged 6 days, weighing 3-5 g, were selected after parturition. Seventeen neonatal pups from 3 pregnant mice that were fed a conventional diet were assigned to control group (C group), 17 neonatal pups from 3 pregnant mice that were fed a conventional diet were assigned to sevoflurane group (S group), and 17 neonatal pups from pregnant mice that were fed a diet supplemented with fish oil were assigned to ω-3 PUFAs plus sevoflurane group (PS1 group) using the random number table method. Part Ⅱ Four C57BL/6 pregnant mice were assigned to receive a diet supplemented with fish oil from day 2 of gestation to day 14 after parturition. After parturition, 12 neonatal pups from 2 pregnant mice that were fed a diet supplemented with fish oil were assigned to ω-3 PUFAs plus sevoflurane group (PS2 group), and 12 neonatal pups from 2 pregnant mice that were fed a diet supplemented with fish oil were assigned to ω-3 PUFAs plus PPARγ inhibitor GW9662 plus sevoflurane group (PGS group) using a random number table method. GW9662 (2 mg/kg) was intraperitoneally injected at 30 min before exposure to sevoflurane in PGS group. All offspring mice were breastfed until 21 days of age, after which they were housed separately from the mother and allowed ad libitum access to a conventional diet. S, PS1, PS2 and PGS groups inhaled 3% sevoflurane in 40% oxygen for 2 h daily on postnatal days 6, 7 and 8. C group inhaled only 40% oxygen instead. Y maze test was performed on days 33 after birth. The rotarod test was performed on day 35 after birth. After the behavioral testing, the expression of PPARγ, PGC1α, mitofusin-1 (MFN1), MFN2, dynamin-related protein 1 (DRP1), interleukin-6 (IL-6), interleukin-1 β (IL-1 β), and tumor necrosis factor-α (TNF-α) was detected by Western blot, the ultrastructure of mitochondria in hippocampal neurons was observed with a transmission electron microscope, and the mitochondrial membrane potential (MMP), level of reactive oxygen species (ROS) and content of ATP were determined.Results:Part Ⅰ Compared with C group, the time of stay at the new-arm and time spent on the rotarod were significantly shortened, the percentage of movement distance in the new-arm was decreased, the expression of PPARγ, PGC1α, MFN1 and MFN2 in the hippocampus was down-regulated, the expression of DRP1, IL-6, IL-1β and TNF-α in the hippocampus was up-regulated, the MMP and content of ATP were decreased, and the level of ROS was increased in S group ( P<0.05). Compared with S group, the time of stay at the new-arm and time spent on the rotarod were significantly prolonged, the percentage of movement distance in the new-arm was increased, the expression of PPARγ, PGC1α, MFN1 and MFN2 in the hippocampus was up-regulated, the expression of DRP1, IL-6, IL-1β and TNF-α in the hippocampus was down-regulated, the MMP and content of ATP were increased, and the level of ROS was decreased in PS1 group ( P<0.05). Part Ⅱ Compared with PS2 group, the time of stay at the new-arm and time spent on the rotarod were significantly shortened, the percentage of movement distance in the new-arm was decreased, the MMP and content of ATP were decreased, the level of ROS was increased, and the expression of IL-6, IL-1β and TNF-α was up-regulated ( P<0.05). Conclusions:The mechanism by which ω-3 PUFAs prevent brain neurotoxicity caused by multiple sevoflurane anesthesia is related to the activation of the PPARγ/PGC1α signaling pathway and alleviation of mitochondrial dysfunction and neuroinflammation in neonatal mice.
10.Role of DHA in long-term cognitive impairment after multiple sevoflurane anesthesia in newborn mice
Sufang JIANG ; Jiaqi LI ; Tianyu CAO ; Jiaqi YUE ; Lichao DI ; Shizhao WANG ; Fuzhen ZHANG ; Rongtian KANG ; Huan CHEN ; Huixian CUI ; Sha LI ; Lining HUANG
Chinese Journal of Anesthesiology 2025;45(5):559-563
Objective:To evaluate the role of docosahexaenoic acid (DHA) in long-term cognitive impairment after multiple sevoflurane anesthesia in newborn mice.Methods:Clean-grade healthy male C57BL/6 mice, aged 6 days, were used in this study. Ten mice were divided into 2 groups ( n=5 each) by the random number table method: control group (group C) and sevoflurane group (group S). The animals inhaled 3% sevoflurane for 2 h at 6, 7 and 8 days after birth. The DHA content was detected by ultra-high performance liquid chromatography-mass spectrometry at 9 days of age. Fifty-two mice were selected and divided into 4 groups ( n=13 each) by a random number table method: control+ normal saline group (group C+ S), sevoflurane anesthesia + normal saline group (group S+ S), control+ DHA group (group C+ D), and sevoflurane anesthesia+ DHA group (group S+ D). The sevoflurane anesthesia method was the same as the one mentioned above. DHA 50 mg/kg was administered by intragastric gavage from postnatal days 6-19 (at 6, 7 and 8 days after birth, 2 h before anesthesia) in C+ D and S+ D groups. The equal volume of normal saline was given instead in C+ S group and S+ S group. The novel object recognition test was conducted at 37 days of age, and the Morris water maze test was performed at 42 days of age. The corpus callosum and hippocampal tissues were isolated at 47 days of age for examination of the ultrastructure of myelin (with a transmission electron microscope) and for determination of the expression of myelin basic protein (MBP) in hippocampal tissues (by Western blot). The G-ratio was calculated. Results:Compared with group C, the content of DHA in hippocampal tissues was significantly decreased in group S ( P<0.05). Compared with group C+ S, the discrimination index was significantly decreased, the percentage of duration of staying at the target platform quadrant and the number of crossing the original platform were decreased, the expression of MBP was down-regulated, and the G-ratio in the original platform and hippocampus was increased in S+ S group ( P<0.05). Compared with group S+ S, the discrimination index was significantly increased, the percentage of duration of staying at the target platform quadrant and the number of crossing the original platform were increased, the expression of MBP was up-regulated, and the G-ratio in the original platform and hippocampus was decreased in S+ D group ( P<0.05). Conclusions:The mechanism of long-term cognitive impairment following multiple sevoflurane anesthesia may be related to a decrease in the content of DHA, which subsequently leads to myelin structural damage in neonatal mice.


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