OBJECTIVE: To observe the distribution characteristics of sensitization areas on the body surface in the rat models with functional constipation and diarrhea, explore the regulatory patterns of electroacupuncture (EA) of different intensities at "Tianshu" (ST25) on distal colon motility, and clarify the roles of the neurons of different subtypes in the enteric nervous system (ENS) displayed in the regulatory effect. METHODS: Of 90 SD male rats of SPF grade, 15 rats were randomized into a normal group, a constipation group and a diarrhea group, 5 rats in each one. The stool form and fecal water content, as well as the distribution of the Evans blue (EB) extravasation on the body surface after the intravenous injection with EB on the tails were observed. Eighteen rats were randomized into a normal +2 mA group, a normal +4 mA group and a normal + 6 mA group, 6 rats in each one. Using physiological signal acquisition system, the area under the curve and the average amplitude of colon peristalsis were recorded and analyzed, and the immediate effect on distal colon peristalsis observed after EA with different intensities at "Tianshu" (ST25). Thirty rats were randomized into a normal group, a constipation group, a diarrhea group, a constipation +2 mA group, and a diarrhea +6 mA group, 6 rats in each one, so as to observe the cumulative effect on colon motility disorder in the rat models of constipation and diarrhea after EA at "Tianshu" (ST25). Twelve rats were randomized into a constipation +2 mA group and a diarrhea +6 mA group, 6 rats in each one, to observe the immediate effect on colon motility disorder in the rat models of constipation and diarrhea after EA at "Tianshu" (ST25). Fifteen rats were randomly divided into a normal group, a constipation group, a diarrhea group, a constipation +2 mA group, and a diarrhea + 6 mA group, 3 rats in each one. Using the whole-mount staining technique, the expression of vesicular acetylcholine transporter (VAChT)-positive neurons and nitric oxide synthase (nNOS)-positive neurons in ENS was detected. According to the group divisions, the functional constipation models were established by intragastric administration of loperamide hydrochloride (10 mg/kg, once daily, for consecutive 7 days), and the functional diarrhea models were prepared by intragastric administration of folium sennae decoction (10 mL/kg, once daily, for consecutive 2 days). The interventions were delivered with EA of different intensities (the electric current of 2, 4 or 6 mA) at bilateral "Tianshu" (ST25), separately, with the continuous wave and the frequency of 10 Hz used. RESULTS: Compared with the normal group, the fecal amount was decreased, and the fecal water content was reduced in the rats of the constipation group (P<0.001); and loose stool was presented and the fecal water content increased in rats of the diarrhea group (P<0.001). EB extravasation on the body surface happened in the region from T₆ to S₂ of the rats in the constipation and diarrhea groups, and it was more concentrated in the lower abdominal and the lower back regions from T₁₀ to L₃. Compared with the indexes before EA, in the normal +2 mA group and the normal +4 mA group, the areas under the curve and the average amplitude of the distal colon peristalsis were higher during EA delivery (P<0.01, P<0.05), showing a stimulatory immediate effect; and the post-effect was obtained after EA at 2 mA. Whereas, these two indexes were declined during EA in the rats of the normal +6 mA group (P<0.001), showing an inhibitory immediate effect. After many interventions with EA, when compared with those before EA, the above two indexes rose in the constipation +2 mA group (P<0.05, P<0.01), and they were dropped in the diarrhea +6 mA group (P<0.01, P<0.05). The area under the curve of the colon peristalsis in the constipation +2 mA group was higher than that of the constipation group (P<0.001), and that in the diarrhea +6 mA group was lower compared with that in the diarrhea group (P<0.001). The stimulatory effect of EA on colon motility in the constipation +2 mA group was stronger than that of the normal + 2 mA group (P<0.05), and its inhibitory effect was not different statistically in comparison between the normal +6 mA group and the diarrhea +6 mA group (P>0.05). In ENS of the distal colon, after EA at 2 mA, the proportion of VAChT-positive neurons was higher than that of the activated nNOS-positive neurons (P<0.001); and after EA at 6 mA, the activated nNOS-positive neurons were dominant (P<0.001). CONCLUSION In the functional constipation and diarrhea rat models, the sensitization areas on the body surface are centralized in the lower abdominal and the lower back regions of T₁₀ to L₃. Electroacupuncture at "Tianshu" (ST25) has a bidirectional regulatory effect on distal colon motility, and this effect is coordinated with the intensity of electroacupuncture, and may be mediated by ENS neurons of different subtypes.
Animals ; Electroacupuncture ; Male ; Rats ; Colon/innervation* ; Acupuncture Points ; Rats, Sprague-Dawley ; Constipation/physiopathology* ; Gastrointestinal Motility ; Humans ; Diarrhea/physiopathology*

Through the investigation of relevant literature, the concepts, methods, languages and tools of ontology were explored, and the suitable methods and tools for the ontology construction of acupoint anatomy were selected. The current mainstream anatomical ontology and related ontology of TCM were investigated so as to provide the reference for the ontology construction of acupoint anatomy. According to the knowledge attributes of acupoint anatomy, the foundational model of anatomy (FMA) was served as the reusable ontology, and in association with the attribute classification of traditional Chinese medicine language system (TCMLS), the construction approach to acupoint anatomical ontology was explored. By taking "anatomical entity of acupoints" as the top-level concept, the demonstrative study on the anatomical ontology construction was conducted on the acupoints of lung meridian of hand-taiyin.
Acupuncture Points ; Humans ; Meridians ; Medicine, Chinese Traditional ; Biological Ontologies

Objective:To explore the prognostic value of peripheral blood lymphocyte subsets in patients with newly diagnosed multiple myeloma (NDMM) .Methods:The study retrospectively analyzed 133 patients with NDMM admitted to the General Hospital of Tianjin Medical University General Hospital between 2017 and 2022. The least absolute shrinkage and selection operator (LASSO) regression was used to screen the predictive subgroups from the peripheral blood lymphocyte subsets, and the optimal cutoff value was calculated through receiver operating characteristic curve analysis. A nomogram was constructed based on the results of the multiple-factor analysis, and the predictive performance of the nomogram was evaluated by the concordance index and calibration curve. Kaplan-Meier curves and log-rank tests were conducted to compare the differences in overall survival (OS) and progression-free survival between the high-risk and low-risk immune risk scores groups.Results:Using LASSO regression, the percentages and absolute counts of CD16 +CD56 + NK cells, CD3 + T lymphocytes, CD3 +CD8 + T lymphocytes, and CD3 -CD19 + B lymphocytes were selected as predictive subgroups. The immune risk score of patients with NDMM was calculated based on the coefficients of each lymphocyte subgroup. The area under the curve of the immune risk score was 0.737, and the optimal cutoff value was -1.834. Based on this, the patients were divided into high-risk and low-risk groups. Survival analysis showed a significant difference in the 3-year OS rate between the high-risk and low-risk immune risk score groups (87.4% vs 49.0%, P<0.001), and a significant difference in the 3-year OS rate between the high-risk and low-risk immune risk score groups in patients with minimal residual disease negative (100% vs 68.6%, P=0.001). Multivariate analysis showed that serum calcium ( P=0.034), high-risk cytogenetic abnormalities ( P=0.002), and immune risk score ( P<0.001) were prognostic factors for patients with NDMM, and a nomogram was constructed based on these factors. The consistency index of the nomogram was 0.793, and the calibration curve showed good predictive ability. The nomogram can accurately classify the risk of different prognostic staging systems. Conclusions:The combined analysis of lymphocyte subsets in the peripheral blood has an important value in predicting the prognosis of patients with NDMM.

Objective To investigate the influence of the liver failing to convey and disperse on space navigation aging.Methods High and low neuroticism subjects screened by Eysenck personality questionnaire were included in liver failing to convey and disperse group and liver controlling conveyance and dispersion group,respectively.The two groups were then divided into youth and elderly groups based on age.Finally,spatial navigation task was conducted to record and analyze behavioral(reaction time and accuracy)and EEG data(amplitude and latency of P2 and N2 components)of all the four groups(30 subjects each group).Results Compared with liver controlling conveyance and dispersion group,the accuracy in subjects with liver failing to convey and disperse decreased significantly(P<0.001)and reaction time was prolonged significantly(P<0.05).The interaction effect between age and liver regulation status showed a marginal significant difference(P=0.078).The accuracy of elderly people was lower than that of youth people(P=0.002)for liver failing to convey and disperse subjects,while there was no significant difference between the two groups for subjects with liver controlling conveyance and dispersion.The P2 amplitude in the elderly group was significantly smaller than that in the youth group(P=0.027).The amplitude of P2 in group of liver failing to convey and disperse was significantly smaller than that in group of liver controlling conveyance and dispersion(P=0.042).The interaction effect of P2 amplitude between age and liver regulation status showed a marginal significance(P=0.073).For youth subjects,the P2 amplitude in group of liver controlling conveyance and dispersion was significantly larger than that in group of liver failing to convey and disperse(P=0.007),while there was no significant difference in P2 amplitude between the two groups for the elderly subjects.The N2 amplitude for tasks of allocentric frames of reference was significantly greater than that of egocentric frames of reference(P=0.024).Conclusion Liver failing to convey and disperse caused by long-term emotional disturbance accelerates spatial navigation aging,and selective attention feature inhibition disorder may be the underlying ERPs neuroelectrophysiological mechanism.

Objective To investigate the influence of the and mechanism of liver failing to convey and disperse on age-related changes in attentional search based on ERPs.Methods oddball attention search task was administrated to record and analyze behavioral and EEG data(N2pc、SPCN、N2pc-Ptc components)of 120 subjects.Results Compared with liver controlling conveyance and dispersion group,the accuracy in subjects with liver failing to convey and disperse decreased significantly(P<0.05).The elderly group had a lower accuracy(P<0.001)and a longer reaction time(P<0.001)compared to the young group.The N2pc amplitude in subjects with liver failing to convey and disperse was significantly greater than that in subjects with liver controlling conveyance and dispersion(P<0.05).The interaction effect of SPCN amplitude between age and liver failing to convey and disperse status was significant(P=0.024).And in the elderly group,SPCN amplitude in subjects with liver dysregulation was significantly smaller than that of liver controlling conveyance and dispersion(P=0.042).The N2pc-Ptc peak to peak amplitude interaction effect between age and liver regulation status was marginal significant(P=0.087),and in liver failing to convey and disperse group,N2pc-Ptc peak to peak amplitude of the elderly was significantly smaller than that of the young(P=0.008).Conclusion Attention search ability is impaired in the elderly with liver failing to convey and disperse,and the electrophysiological abnormalities,such as directed attention allocation,spatiotemporal dynamic cohesion and short-term memory maintenance,may be part of the mechanism.

In recent years,a growing body of research has demonstrated that acupuncture can be used to effectively treat a diverse range of diseases,including functional gastrointestinal disorders,cardiovascular diseases,as well as anxiety and depression,through the modulation of the paraventricular hypothalamic nucleus(PVN).Acupuncture may exert its therapeutic effect either by modulating specific neurons within the PVN,such as corticotropin releasing hormone(CRH)neurons,or by regulating the release of hormones,such as oxytocin(OXT)and vasopressin(VP),and the activity of neural circuits associated with the PVN.This review summarizes the mechanisms by which PVN is involved in acupuncture treatment,including its regulatory mechanisms in gastrointestinal diseases,cardiovascular diseases,and negative emotions and pain.Future research should be conducted to further explore the precise mechanisms by which acupuncture regulates PVN to treat diseases,focusing on clarifying the specific processes of signaling pathway transduction,and exploring the specific effects of acupunture of different acupoint combinations and stimulation frequencies and intensity on PVN.

Objective To investigate the role of long non-coding RNA-small nucleolar RNA host gene 3(lncRNA-Snhg3)and its regulatory mechanism in the hepatic glucose metabolism of mice.Methods Adenovirus Snhg3 was over-expressed by the tail vein injection in db/db mice,and then glucose tolerance and pyruvate tolerance were meas-ured.The mRNA expression of mouse liver gluconeogenesis-related genes phosphoenolpyruvate carboxylase(Pepck)and glucose-6-phosphatase(G6pc)and stress-inducing protein 2(Sestrin2,Sesn2,a gene adjacent to Snhg3)were de-tected by RT-qPCR.The dual luciferase reporter assay was used to detect the effect of Snhg3 on the Sesn2 promoter activity in 293T cells.Results Snhg3 over-expression improved glucose tolerance and pyruvate tolerance in db/db mice.Snhg3 over-expression inhibited the mRNA of gluconeogenesis genes of Pepck(P＜0.05)and G6pc(P＜0.05),while promoted the mRNA of Sesn2(P＜0.01).Meanwhile,Snhg3 over-expression promoted Sesn2 promoter activity in 293T cells(P＜0.05).Conclusions Snhg3 improves glucose metabolism in mice by promoting Sestrin2 expression.

Objective:To analyze the epidemiological and clinical characteristics of respiratory pathogens in China.Methods:This study was a cross-sectional study, which encompassed 19 core units of the clinical pathogen network and established a three-tiered clinical pathogen surveillance system. Thirty respiratory samples were collected every two weeks from various units from January to December 2024, and the clinical and pathogen diagnostic information were gathered. A total of 11 864 samples were tested using this system. The tier-1 clinical pathogen surveillance system covered influenza A virus (Flu-A), influenza B virus (Flu-B), respiratory syncytial virus (RSV), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The tier-2 clinical pathogen surveillance system focused on 18 key respiratory pathogens. The tier-3 clinical pathogen surveillance system further clarified whether any emerging infectious diseases had occurred.Results:The tier-1 clinical pathogen surveillance system showed Flu-A predominated in December, Flu-B predominated in January, SARS-CoV-2 peaked in March and August, whereas RSV circulated sporadically throughout the year. Geographic trends were broadly consistent across the seven major regions, although Flu-A detection in December was notably higher in Northeast China (48.1%(111/231)) and East China (36.2%(148/409)), and RSV detection was concentrated in the Northwest and South China from January to March. Data from the tier-2 clinical pathogen surveillance system indicated that Streptococcus pneumoniae, Mycoplasma pneumoniae, rhinovirus, and adenovirus were detected year-round, of these, Streptococcus pneumoniae and rhinovirus showed elevated positive detection rates from August to September, while adenovirus peaked in January. Legionella pneumophila was not detected throughout the year, and other pathogens fluctuated throughout the year without a consistent pattern. The predominant etiologic agents of pediatric pneumonia were Mycoplasma pneumoniae (35.0%(105/300)), rhinovirus (25.7%(77/300)), and adenovirus (17.3%(52/300)), whereas adult pneumonia was mainly caused by Streptococcus pneumoniae (10.5%(29/277)), Staphylococcus aureus (6.9%(19/277)), Mycoplasma pneumoniae (6.9%(19/277)), and Flu-A (6.1%(17/277)). The tier-3 clinical pathogen surveillance system did not identify any emerging respiratory pathogens. Conclusion:Respiratory pathogens in China in 2024 exhibit distinct temporal and spatial distribution patterns and vary among different populations.

Objective:To investigate the association between magnesium sulfate exposure within 24 h before birth and short-term outcomes in preterm infants under 34 weeks' gestation.Methods:This retrospective cohort study analyzed data from preterm infants under 34 weeks admitted to the neonatal intensive care unit of the Affiliated Hospital of Qingdao University between June 1, 2020, and December 31, 2024. Infants were categorized into the exposure and the control groups based on magnesium sulfate administration within 24 hours before delivery. Maternal characteristics, birth parameters, and neonatal outcomes were compared using independent t-tests or Chi square tests (Fisher's exact test), with logistic regression assessing magnesium sulfate's effect on non-cerebral palsy outcomes. Results:The cohort comprised 384 preterm infants (24-33 +6 weeks), with 290 (75.5%) in the exposure group and 94 (24.5%) in the control group. (1) Baseline characteristics showed no significant differences in maternal hypertensive disorders, antenatal corticosteroids administration, premature rupture of membranes, delivery mode, or male infant proportion (all P>0.05). The exposure group had lower birth weight [(1 583±451) vs. (1 744±473) g; t=2.97] and gestational age [(31.3±2.1) vs.(31.8±2.4) weeks; t=2.20; both P<0.05)]. (2) The exposure group demonstrated reduced incidence of in-hospital mortality [0.3% (1/290) vs. 6.4% (6/94); Fisher's exact test], grade Ⅲ-Ⅳ intracranial hemorrhage [1.7% (5/290) vs. 9.6% (9/94); χ2=12.86], and white matter injury [2.1% (6/290) vs. 9.1% (8/94); χ2=9.08] (all P<0.01). (3) Univariate logistic regression identified antenatal magnesium sulfate as protective against grade Ⅲ-Ⅳ intracranial hemorrhage ( OR=0.20, 95% CI: 0.04-0.96), white matter injury ( OR=0.11, 95% CI: 0.01-0.91), and in-hospital mortality ( OR=0.93, 95% CI: 0.88-0.99). (4) Multivariate analysis confirmed the independent protective effect of antenatal exposure of magnesium sulfate against intracranial hemorrhage in preterm infants under 34 weeks ( OR=0.19, 95% CI: 0.04-0.95), particularly pronounced in infants <32 weeks ( OR=0.11, 95% CI: 0.01-0.96). (5) No significant differences emerged in secondary outcomes including 5-minute Apgar scores, respiratory distress syndrome, surfactant administration, mechanical ventilation, bronchopulmonary dysplasia, hemodynamically significant patent ductus arteriosus, necrotizing enterocolitis, early-onset sepsis, retinopathy of prematurity, metabolic bone disease, or hospitalization duration (all P>0.05). Conclusions:Magnesium sulfate exposure within 24 hours before delivery reduces grade Ⅲ-Ⅳ intracranial hemorrhage risk in preterm infants under 34 weeks, with enhanced protection in those <32 weeks, without increasing adverse effects in other organ systems.

Objective Using event-related potentials(ERPs)technology to study the effect of long term emotional distress on selective attention distraction inhibition function in college students and its neuroelectrophysiological mechanism.Methods The Eysenck personality questionnaire(EPQ)adult version was used to screen the high and low neuroticism groups among college students,and 35 subjects in each group were included in the long term emotional distress group and the emotional smoothness control group,respectively,and the response time,correct rate,N2 and P3 amplitude and latency results of the participants to complete the negative priming paradigm task were collected and analyzed.Results Compared with the control group,① the long term emotional distress group showed a prolonged response trend(P=0.072).② the long term emotional distress group had a prolonged N2 and P3 latency(P<0.05).Conclusion Selective attention distraction inhibition in college students with long term emotional distress decreased,and the decline mechanism may be related to the decline of inhibition processing and attention resource allocation ability.