Objective:To investigate the technical application pathways of artificial intelligence(AI)in laboratory information management systems(LIMS)and its role in promoting laboratory management efficiency and intelli-gence.Methods:Through the integration of traditional AI technologies(e.g.,machine learning,computer vision)with large language models,this study demonstrated the application of various AI technologies in scenarios such as intelligent Q&A for local knowledge bases,comprehensive review of inspection processes,intelligent data visualization,and image recognition.Results:Through the implementation of AI applications in laboratory settings,AI significantly enhanced management efficiency:the intelligent Q&A system achieved over 90％accuracy,auto-mated inspection processes reduced manual workload by 40％,and image recognition precision reached 89％-100％.Conclusion:AI provides efficient and precise solutions for laboratory management via multimodal integration and process optimization.Future efforts should focus on strengthening data security and model interpret-ability to promote comprehensive intelligent development.

Objective:To investigate the technical application pathways of artificial intelligence(AI)in laboratory information management systems(LIMS)and its role in promoting laboratory management efficiency and intelli-gence.Methods:Through the integration of traditional AI technologies(e.g.,machine learning,computer vision)with large language models,this study demonstrated the application of various AI technologies in scenarios such as intelligent Q&A for local knowledge bases,comprehensive review of inspection processes,intelligent data visualization,and image recognition.Results:Through the implementation of AI applications in laboratory settings,AI significantly enhanced management efficiency:the intelligent Q&A system achieved over 90％accuracy,auto-mated inspection processes reduced manual workload by 40％,and image recognition precision reached 89％-100％.Conclusion:AI provides efficient and precise solutions for laboratory management via multimodal integration and process optimization.Future efforts should focus on strengthening data security and model interpret-ability to promote comprehensive intelligent development.

Objective:To observe the effects of modified Xuanfuhua Decoction on pain behaviour and spinal cord neuroinflammation mediated by phosphorylated mitogen-activated protein kinase p38 (p38MAPK) signaling pathway in rats with sciatic nerve injury; To analyse the mechanism of its effects.Methods:Totally 108 SD rats were randomly divided into sham-operation group, model group, pregabalin group, decoction low-, medium- and high-dosage groups, with 18 rats in each group. The CCI model was established by ligation of sciatic nerve in other groups except sham-operation group. On the postoperative day, the decoction low-, medium-, high-dosage groups were gavaged with 2.5, 5.0 and 10.0 g/kg of modified Xuanfuhua Decoction concentrate, respectively. The pregabalin group was gavaged with 15 mg/kg of pregabalin. The sham-operation group and the model group were gavaged with equal amounts of saline once/d for 15 days. Pain behavioural assays were performed before, on the 3rd, 7th, 11th and 15th day of administration respectively. The levels of interleukin (IL)-1β, tumour necrosis factor-α (TNF-α), IL-10 were detected by ELISA method. The expressions of Toll-like receptor 4 (TLR4), nuclear factor-κB p65 (NF-κB p65) were detected by immunohistochemistry staining. The phosphorylated p38MAPK (p-p38MAPK) were measured in the spinal cord by Western blot.Results:Compared with the model group, the scores of spontaneous pain in decoction high-dosage group decreased ( P<0.05), the thermal foot shrinkage latency (TWL) was prolonged ( P<0.05), and the mechanical foot shrinkage reflex threshold (MWT) increased ( P<0.05); the levels of IL-1β and TNF-α in spinal cord tissue of decoction low-, medium- and high-dosage groups decreased ( P<0.05), the level of IL-10 increased ( P<0.05), the average gray values of TLR4 and NF-κB p65 in spinal cord decreased ( P<0.05), and the expression of P-P38MAPK protein decreased ( P<0.05). Conclusion:Modified Xuanfuhua Decoction can effectively improve neurogenic pain in CCI rats, and the mechanism may be related to inhibition of p38MAPK-TLR4 signaling pathway activation-mediated spinal cord neuroinflammation.

Objective: To analyze the characteristics of the daily exercise load and the One Hour of Moderate to Vigorous Physical Activity (MVPA) per day among primary school students, so as to provide a reference for improving the quality of the physical activity of primary school students in school. Methods: A total of 223 students from an elementary school in Beijing from May to June of 2023, were selected by stratified random cluster sampling method. The Polar Verity Sense heart rate arm band was used to monitor and evaluate the daily exercise load heart rate according to different grades, gender and physical quality. Results: The average heart rate of primary school students in outdoor class, zero point sports, recess and indoor class was (130.01±13.11, 119.89± 16.02,109.96±8.11,96.81±7.89) times/min, respectively, and only 4.04% students met the standard of 1 hour MVPA daily. From the perspective of different grades, the MVPA time ratio of lower grade students in outdoor class, zero point sports and big break was 28.41%, 42.47% and 8.24%, that of middle grade students was 18.33%, 6.41% and 5.90%, and that of senior students was 45.91%, 3.88% and 11.43%. The number of students who achieved 1 hour daily MVPA was 5.41%, 0 and 6.67%. Time ratio of MVPA in outdoor classes, zero hour sports and big breaks accounted for 30.09%, 16.34% and 9.23% for boys, 31.70%, 16.24 % and 6.13% for girls, and the interval distribution of boys and girls who achieved MVPA for one hour per day was 5.88% and 2.86%.Time ratio of MVPA for students with excellent physical fitness were 33.19%, 21.76% and 8.25% in outdoor class, zero point sports and big break, while those with good physical fitness were 29.76%, 12.93% and 8.19%.A total of 21.78%, 5.99% and 4.80% of the students passed the physical fitness test, and the number of students with excellent, good and passed the physical fitness test who achieved the daily 1 hour MVPA was 5.88%, 3.77% and 0. Conclusion In the present study, elementary and middle school students time for in school physical activity was adequate, but there are problems of low loading intensity and insufficient time for MVPA. It is necessary to arrange targeted physical activity programs for students of different grades, genders and physical fitness levels to increase the daily exercise load of students in school.

Objective:To investigate the feasibility and effectiveness of surgical ligation in the treatment of congenital extra-hepatic portosystemic shunt (Abernethy malformation) in children.Methods:Among the 12 children with Abernethy malformation admitted at our hospital, 9 cases for blood stools, 2 cases for elevated transaminase level and jaundice, and 1 case for hypoxemia. Intraoperatively, if portal pressure was ≤ 26 cm H 2O(1 cmH 2O=0.098 kPa) after clamping the shunt, than the shunt was ligated, when>26 cm H 2O, the portosystemic shunt was partially ligated and the shunt was completely ligated in a two stage. All patients were followed up for 5-70 months (mean: 35.2 months). Results:Six cases underwent the one stage ligation of portosystemic shunt, five cases underwent the two stage ligation and one case with partial ligation of portosystemic shunt. The symptoms of hematochezia relieved in 9 cases. The levels of blood bilirubin and transaminase returned to normal after operation in 2 cases with increased transaminase. The oxygen saturation returned to normal in 1 case with hypoxemia.Conclusion:The surgical ligation of portosystemic shunt is an effective method to treat type Ⅱ Abernethy malformation.

Objective:To evaluate the vital signs changes,influence factors in different grades of hy-pertension patients during the treatment of acute pulpitis,in order to obtain the risk prevention measures. Methods:In this study,90 different grades of hypertension patients with acute pulpitis were recruited from February 201 4 to February 201 5 in the Department of Oral Emergency,Peking University School and Hospital of Stomatology.The information about the patients’general health,oral treatment,life signs of change information was collected.Patients were divided into high risk group,middle risk group, and low risk group (30 patients for each group).Results:(1 )Compared with the preoperative,systolic blood pressure (90%),diastolic blood pressure (80%),heart rate increase (1 00%)were increased in the high risk group.The increase rates of the middle risk group and the low risk group were significantly lower than those of the high risk group (P<0.01 ).At the same time,the systolic blood pressure of 1 /4 (26.7%)patients in high risk group increased more than 20 mmHg (1 mmHg=0.1 33 kPa),and the diastolic blood pressure of 2/5 patients in high risk group increased more than 1 0 mmHg,the difference was statistically significant compared with the other two groups (P<0.05).(2)Compared with the pre-operative,the average increase of the maximum peak were increased [systolic blood pressure (1 8.0 ± 1 .5)mmHg,diastolic blood pressure (8.0 ±1 .7)mmHg],the mean of heart rate changes [(7.0 ± 0.3)beats per minute]was also increased in the high risk group,while these two indicators were de-creased in the low risk group and the middle risk group.The electrocardiogram (ECG)was changed in 6 cases during the treatment in the high risk group.No significantly changed were observed in the low risk group and the middle risk group.(3 ) Compared the risk assessment in preoperative with that in postoperative,in the middle risk group,23 cases were evaluated as medium risk in final evaluation,6 as low risk,and 1 as high risk (risk assessment increased);in the high risk group,20 cases were evaluated as high risk,7 as very high risk,and 3 as medium risk (risk assessment decreased).Conclusion:Oral treatment is very safe for patients with hypertension,but the risk factor,target organ damage,and com-plications will also increase the risk of cardiovascular events in elderly patients during the acute pulpitis treatment.Dentist should take some measures to avoid the risks.

Objective In this study,we employed newborn hearing screening and gene screening concurrently to explore the hearing loss associated with mutations in the city of Jinan.Methods A total of 3 288 newborns born between March 2013 and December 2013 in Jinan Maternity and Child Care Hospital received hearing concurrent genetic screening.Transiently evoked otoacoustic emissions (TEOAE) was used in rooming-in newborns,while TEOAE and auto auditory brainstem response (AABR) was used in infants in neonatal intensive care unit (NICU).Two drops of heel blood were harvested with filter paper.Nine mutations [GJB2(235delC,35delG,299delAT,176del16),SLC26A4(IVS7-2A ＞ G,2168 A ＞ G),GJB3 (538 C ＞ T),12SrRNA (1555 A ＞ G,1494C ＞ T)] of 4 frequent genes associated with Chinese hearing loss were determined by gene chip in these dried blood samples.Results Among 3 288 newborns,363 cases failed to pass the hearing screening,and 36 cases of these 363 newborns carried mutations,with a carrier rate of 9.91％.2 925 cases passed the hearing screening,of which 113 carried mutations,with a carrier rate of 3.86％.There was a significantly statistic difference (x2 =8.67,P =0.000) in carrier rate between two groups.149(4.53％) infants were detected to carry at least one mutation allele,among which 113 cases passed the hearing screening and 36 cases failed.Seven cases were diagnosed to have hearing loss.Homozygous GJB2 mutation was detected in 2 cases,compound heterozygous GJB2 mutation was detected in 1 case,and heterozygous GJB2 mutation in 88 cases.There were 91 cases carried GJB2 mutations totally,with a total rate of 2.76％.There were 40 cases were detected to carry heterozygous SLC26A4 mutation,with a carrier rate of 1.22％.Nine cases had heterozygous GJB3 mutation,with a carrier rate of 0.27％.Six cases had homogeneous mitochondria 12SrRNA mutation,and 1 had heterogeneous mutations.There were 7 cases totally,with a total rate of 0.21％.142 infants with gene mutation should be follow-up.Conclusion A follow-up system in infants,passed hearing screening,with single heterozygous mutation and mutations associated with drug-induced hearing loss,can help to detect infants with hearing defects early and effectively prevent late-onset hearing impairment.

Objective To investigate the efficacy and safety of laparoscopic repair in children with congenital esophageal hiatal hernia. Methods From September 2001 to December 2008,seven children with congenital esophageal hiatal hernia,including 4 boys and 3 girls,were treated by laparoscopic repair and Nissen's fundoplication in our hospital. One of them received laparoscopic pyloroplasty in the meanwhile because of delayed gastric emptying (confirmed by preoperative gastrointestinal angiography); one child underwent laparoscopic high ligation due to right oblique inguinal hernia; spleneolus was found in one patient,no further treatment was carried out. Results The procedures were completed in all of the patients without conversion to open surgery. The mean operation time was 94.2 min (75-150 min) in this series,and the average blood loss was 5 ml (2-10 ml). No patient received blood transfusion after the surgery. The children began to intake milk or regular diet in 24-48 hours after the operation. They were discharged from hospital in a mean of 4.5 days (ranged from 3 to 7 days). Then,the children were followed up for 6 to 20 months (mean,12.6 months). One of the patients suffered from vomiting on the 10th day after the operation,1 patient showed recurrence in 1 year postoperation and then was cured by a second operation. The other five patients were healthy during the follow-up. Conclusions Laparoscopic repair of congenital esophageal hiatal hernia is a safe,effective,and minimally invasive procedure. It is feasible for patients complicated with other diseases. The indications for the surgery must be strictly selected.

OBJECTIVETo evaluate the feasibility and characteristics of human engraftment in HLA disparate cord blood transplantation.

METHODSTwo human HLA-haploidentical or HLA-mismatched cord blood units were transplanted into sublethally irradiated severe combined immunodeficiency (SCID) mice. The characteristics of engraftment, hematopoietic and immunological reconstitution between the two groups were compared.

RESULTSTwo mixed cord blood units can engraft in SCID mice with donor-recipient chimerism and reconstitute hematopoiesis and immunological functions. No unfavorable factors had been observed. Only one of the two cord blood units which had higher colony forming ability in vitro could engraft in most SCID mice as shown by HLA-DQB(1) gene detection. Two HLA-haploidentical cord blood units were simultaneously engrafted in 3 SCID mice.

CONCLUSIONDouble HLA-haploidentical or HLA-mismatched cord blood can engraft in SCID mice and reconstitute hematopoietic and immunological functions. HLA disparity has no significant effect on survival and engrafting rate. However, in less HLA disparity group, two cord blood units were prone to engraft simultaneously.

Animals ; Antigens, CD ; immunology ; Cord Blood Stem Cell Transplantation ; methods ; Disease Models, Animal ; Female ; Fetal Blood ; immunology ; metabolism ; Flow Cytometry ; HLA Antigens ; genetics ; immunology ; Hematopoiesis ; Humans ; Mice ; Mice, SCID ; Random Allocation ; Severe Combined Immunodeficiency ; immunology ; physiopathology ; surgery ; Survival Analysis ; Transplantation, Heterologous

OBJECTIVETo study the relationship between HLA-DRB1 alleles and idiopathic thrombocytopenic purpura (ITP) in children.

METHODSPCR-SSO was used to identify DRB1 alleles of 42 children with ITP. Among them, anti-GPIIb/IIIa and anti-GPIb/IX autoantibody were detected in 36 cases by modified monoclonal antibody specific immobilization of platelet antigens (MAIPA).

RESULTS(1) Compared with healthy controls, HLA-DRB1 * 17 was significantly increased (relative risk = 2.76, P < 0.05, etiologic factor = 0.106 4) and HLA-DRB1 * 1202 decreased (relative risk = 0.20, P < 0.025, prophylactic factor = 0.761 6) in children with ITP. (2) In comparison with patients with good response to steroids and IgG therapy, HLA-DRB1 * 11 was significantly increased (P < 0.025) in patients with a poor response, furthermore, most (5/6) of HLA-DRB1 * 11-positive patients were female teen-ager. (3) Twenty-seven patients (75%) had anti-GPIIb/IIIa and seventeen (47.22%) had anti-GPIb/IX autoantibodies, the positivity rates of both anti-GPIIb/IIIa (P = 0.02) and anti-GPIb/IX (P = 0.01) were associated with HLA-DRB1 * 02. However, the pos./itivity rates of autoantibodies between refractory and non-refractory patients showed no significant difference.

CONCLUSION(1) The DRB1 * 17 seems to predict susceptibility to ITP in children, while DRB1 * 1202 appears to be protective to against ITP. (2) The DRB1 * 11 plays an important role in resistance to steroid and IgG therapy in children with ITP. (3) It seems that the response to the antigenic epitope of GPIIb/IIIa and GPIb/IX is restricted by DRB1 * 02, while the presence of the autoantibodies couldn't predict prognosis. Our preliminary findings indicate that genetic factors influence the clinical course of ITP, but its exact mechanism needs to be further investigated.

Alleles ; Child ; Female ; Gene Frequency ; HLA-DR Antigens ; genetics ; HLA-DRB1 Chains ; Humans ; Male ; Purpura, Thrombocytopenic, Idiopathic ; genetics ; immunology ; therapy