ObjectiveThis paper aims to observe the syndrome improvement and negative antigen conversion rate of Qingxuan Daozhi formula in the treatment of influenza in children （heat accumulation in the lung and stomach syndrome）. MethodsThrough a multi-center randomized controlled methodology design，confirmed influenza cases were collected from October 2022 to April 2023 in the pediatrics department of eight hospitals，such as Dongfang Hospital of Beijing University of Chinese Medicine. A total of 180 children with influenza and heat accumulation in the lung and stomach syndrome conforming to the standard were recruited through the clinic. The sick children meeting the inclusion criteria were randomly divided into groups by a block-randomized method. The children in the experimental group were treated with Qingxuan Daozhi formula for five days，and those in the control group were treated with Oseltamivir Phosphate Granules for five days. The primary efficacy indicator was the negative conversion rate of influenza antigen detection. Secondary efficacy indicators were the Canadian acute respiratory illness and flu scale （CARIFS） and the incidence of complications，severe cases， and critical cases. Follow-up observation was conducted on the day of enrollment，48 hours after medication，72 hours after medication， and （6+1） d after medication. ResultsOne hundred and eighty participants were randomly assigned to the experimental group （90 cases） or the control group （90 cases）. All participants were followed up during the study. Comparison of influenza antigen detection results in the primary efficacy indicators showed that the average time of negative influenza antigen conversion in the experimental group was （5.29±1.25） d，and that in the control group was （5.40±1.68） d，without a statistically significant difference. After five days of intervention，52 cases in the experimental group and 51 cases in the control group converted to negative，without a statistically significant difference. CARIFS score results in the secondary efficacy indicators showed that during 72 hours after intervention，there were statistically significant differences between the experimental group and the control group in three dimensions， including headache，muscle soreness， and the need for extra care （P<0.05）. On the （6+1） days after the intervention，the differences in both the experimental group and the control group were statistically significant in 10 dimensions， including sore throat，bad sleep，uncomfortable feeling，poor spirit and fatigue，crying more than usual，the need for extra care，symptom，function，influence on parents，and total score （P<0.05）. The comparison results within the group in the dimensional scores of symptom， function， and influence on parents，as well as the CARIFS total score showed that with the delay of follow-up time，scores of both groups decreased significantly，with a statistically significant difference （P<0.01）. Inter-group comparison results showed that the mean score of the experimental group was higher than that of the control group at the time of enrollment. With the progress of intervention，the score of the experimental group was significantly decreased compared with that of the control group. At the end of follow-up，the mean score of the experimental group was lower than that of the control group，with no statistically significant difference. In terms of the incidence of complications，severe cases， and critical cases， there were no complications，severe cases， and critical cases in the two groups，without a statistically significant difference. ConclusionThe symptom improvement effect and negative antigen conversion rate of Qingxuan Daozhi formula in the treatment of influenza in children （heat accumulation in the lung and stomach syndrome） are not inferior to Oseltamivir Phosphate granules， and children's acceptance is better. It can be more widely used in clinical treatment of influenza in children （heat accumulation in the lung and stomach syndrome）.

BACKGROUND:Promoting skin wound healing is a huge challenge facing global public health.To promote faster and higher-quality wound healing,it is necessary to explore more advantageous dressings to address this problem.OBJECTIVE:To investigate the hemostatic properties of acellular dermal matrix hydrogel and its effect on skin wound healing.METHODS:(1)Acellular dermal matrix hydrogel was prepared,and the differences in microscopic morphology and main components between it and acellular dermal matrix were analyzed.(2)Acellular dermal matrix hydrogel and chitosan hydrogel were used to cover the femoral artery puncture site of rats,and the bleeding quality and coagulation time were recorded.Acellular dermal matrix hydrogel and chitosan hydrogel were mixed with rat anticoagulated blood,and the coagulation index within 30 minutes was detected.(3)A full-thickness skin defect model with a diameter of 12 mm was made on the back of 18 SD rats,and they were randomly divided into 3 groups,with 6 rats in each group:the model group used PBS to clean the wound,and the control group and the experimental group used chitosan hydrogel and acellular dermal matrix hydrogel to cover the wound,respectively.The hydrogel dressing was changed every day,and the treatment was continued for 14 days,and the wound healing was observed.On day 3 after modeling,immunofluorescence staining of inducible nitric oxide synthase(M1 macrophages)and CD206(M2 macrophages)was performed on the wound surface.On day 14 after modeling,hematoxylin-eosin staining,Masson staining,and CD31 immunohistochemical staining were performed on the wound surface.RESULTS AND CONCLUSION:(1)Scanning electron microscopy revealed that the acellular dermal matrix hydrogel had a porous structure,and the Fourier transform infrared spectrum showed that it had the same main components as the acellular dermal matrix.(2)Both acellular dermal matrix hydrogel and chitosan hydrogel had obvious hemostatic ability in vivo.In the in vitro coagulation experiments,the coagulation index of acellular dermal matrix hydrogel was significantly higher than that of chitosan hydrogel.(3)In the rat skin full-thickness defect model,both acellular dermal matrix hydrogel and chitosan hydrogel could improve the wound healing rate.Hematoxylin-eosin and Masson staining results showed that acellular dermal matrix hydrogel could reduce the infiltration of inflammatory cells in the center of the wound.Both acellular dermal matrix hydrogel and chitosan hydrogel could decrease scar width and increase collagen deposition rate.CD31 immunohistochemical staining results showed that both hydrogels could promote angiogenesis in the wound site.Immunofluorescence staining results showed that both hydrogels could reduce the proportion of M1 macrophages and increase the proportion of M2 macrophages,and the effect of acellular dermal matrix hydrogel was stronger than that of chitosan hydrogel.(4)The results show that the acellular dermal matrix hydrogel has good hemostatic properties and the ability to promote wound healing.

BACKGROUND:Promoting skin wound healing is a huge challenge facing global public health.To promote faster and higher-quality wound healing,it is necessary to explore more advantageous dressings to address this problem.OBJECTIVE:To investigate the hemostatic properties of acellular dermal matrix hydrogel and its effect on skin wound healing.METHODS:(1)Acellular dermal matrix hydrogel was prepared,and the differences in microscopic morphology and main components between it and acellular dermal matrix were analyzed.(2)Acellular dermal matrix hydrogel and chitosan hydrogel were used to cover the femoral artery puncture site of rats,and the bleeding quality and coagulation time were recorded.Acellular dermal matrix hydrogel and chitosan hydrogel were mixed with rat anticoagulated blood,and the coagulation index within 30 minutes was detected.(3)A full-thickness skin defect model with a diameter of 12 mm was made on the back of 18 SD rats,and they were randomly divided into 3 groups,with 6 rats in each group:the model group used PBS to clean the wound,and the control group and the experimental group used chitosan hydrogel and acellular dermal matrix hydrogel to cover the wound,respectively.The hydrogel dressing was changed every day,and the treatment was continued for 14 days,and the wound healing was observed.On day 3 after modeling,immunofluorescence staining of inducible nitric oxide synthase(M1 macrophages)and CD206(M2 macrophages)was performed on the wound surface.On day 14 after modeling,hematoxylin-eosin staining,Masson staining,and CD31 immunohistochemical staining were performed on the wound surface.RESULTS AND CONCLUSION:(1)Scanning electron microscopy revealed that the acellular dermal matrix hydrogel had a porous structure,and the Fourier transform infrared spectrum showed that it had the same main components as the acellular dermal matrix.(2)Both acellular dermal matrix hydrogel and chitosan hydrogel had obvious hemostatic ability in vivo.In the in vitro coagulation experiments,the coagulation index of acellular dermal matrix hydrogel was significantly higher than that of chitosan hydrogel.(3)In the rat skin full-thickness defect model,both acellular dermal matrix hydrogel and chitosan hydrogel could improve the wound healing rate.Hematoxylin-eosin and Masson staining results showed that acellular dermal matrix hydrogel could reduce the infiltration of inflammatory cells in the center of the wound.Both acellular dermal matrix hydrogel and chitosan hydrogel could decrease scar width and increase collagen deposition rate.CD31 immunohistochemical staining results showed that both hydrogels could promote angiogenesis in the wound site.Immunofluorescence staining results showed that both hydrogels could reduce the proportion of M1 macrophages and increase the proportion of M2 macrophages,and the effect of acellular dermal matrix hydrogel was stronger than that of chitosan hydrogel.(4)The results show that the acellular dermal matrix hydrogel has good hemostatic properties and the ability to promote wound healing.

ObjectiveTo investigate the relationship between TypeⅠHelicobacter pylori （H. pylori） infection and the risk of colorectal neoplasms （CRN） in patients attending gastroenterology clinics， and to evaluate its predictive value for CRN in this population. MethodsWe included 2 148 patients presenting to the Department of Gastroenterology， with 677 assigned to the CRN group and 1 471 to the non-CRN group.H.pylori antibody typing was performed using Western blot， with typeⅠdefined as positivity for CagA and/or VacA antibodies， and type II as positivity only for UreA/B antibodies. Statistical analyses included univariate screening， multivariate logistic regression， and receiver operating characteristic （ROC） curve evaluation. ResultsTypeⅠH.pylori seropositivity was significantly more prevalent in the CRN group than in the non-CRN group （54.51% vs 45.62%， P_adjust<0.05）. No significant differences were observed for type Ⅱ H.pylorior seronegative subjects. The CRN group had higher proportions of males， hypertension， diabetes， smoking， and alcohol use， as well as elevated body mass index， fasting plasma glucose， triglycerides， and uric acid， along with lower high-density lipoprotein levels （all P<0.05）. Multivariate analysis confirmed typeⅠH.pylori （OR=1.303）， alcohol consumption （OR=2.315）， male （OR=1.592）， and age （OR=1.048） as independent risk factors for CRN. Although type I H.pylori alone showed limited predictive value （AUC=0.544）， a combined model incorporating alcohol use， age， and sex demonstrated significantly improved discriminative ability （AUC=0.681， sensitivity 59.1%， specificity 68.2%）. ConclusionTypeⅠH. pylori infection predicts the risk of CRN in gastroenterology patients. Assessing it can help to optimize the identification of high-risk individuals and inform targeted screening strategies.

Objective To explore the influencing factors of immune-associated thyroid dysfunction caused by sintilimab treatment in solid tumors and construct a prediction model.Methods Medical records of patients diagnosed with solid tumors and treated with sintilimab at Peking University People's Hospital(Xizhimen Campus,Tongzhou Campus,Shijiazhuang Campus)from January 2023 to September 2024 were collected to explore the influencing factors that caused immune-related thyroid dysfunction using univariate and multifactorial binary logistic regression analyses and to establish a prediction model.The predictive effect of the model was assessed using the receiver operating characteristic(ROC)curve.Results A total of 120 patients were included,and 33 presented with immune-related thyroid dysfunction.Multifactorial logistic regression analysis revealed that thyroid-stimulating hormone(TSH)[OR=2.470,95%CI=(1.279,4.771)]and treatment cycles[OR=1.298,95%CI=(1.117,1.509)]were independent risk factors for the occurrence of immune-associated thyroid dysfunction,and the difference was statistically significant(P＜0.05).The area under the ROC curve was(0.897±0.043)[95%CI=(0.813,0.981)],the Yoden index was 0.703,and the model prediction accuracy was 86.5%.Conclusion The risk of immune-related thyroid dysfunction caused by sintilimab is high,and TSH and treatment cycle are the influencing factors,and the constructed model has certain predictive value and is of reference significance.

Objective:To investigate the effect of the embryo cryopreservation duration on pregnancy and obstetric outcome.Methods:A retrospective cohort study of 2 662 frozen-thawed embyro tranfer (FET) cycles was conducted in the Reproductive Medicine Center, Department of Obstetrics and Gynecology, Tianjin Medical University General Hospital from January 2016 to December 2020. According to embryo cryopreservation duration, the patients were divided into group A (≤1 year, n=2 115), group B (>1 years and ≤3 years, n=319), group C (>3 years and ≤6 years, n=174), and group D (>6 years, n=54). We used the propensity score matching (PSM) to match the baseline data of oocyte retrieval age of the other three groups according to group D at a ratio of 1∶3. Clinical and obstetric outcomes were compared among the four groups. Multiple logistic regression analysis was used to analyze the effect of oocyte retrieval age, embryo transfer age, the duration of embryo cryopreservation, endometrial preparation scheme, endometrial thickness, the number of transferred embryos and the number of high-quality embryos on pregnancy and live birth outcome. Results:1) Before PSM, there were significant differences in the maternal age at oocyte retrieval and embryo transfer and duration of embryo cryopreservation among the four groups(all P<0.001). 2) After PSM, the baseline characteristics of oocyte retrieval age reached a balance among the four groups. There were no statistical differences in the number of embryos transfer, the number of high-quality embryos, the transferred embryo stage, the endometrial regimen among the groups (all P>0.05). The clinical pregnancy rate [37.04% (20/54)] and the live birth rate [33.33% (18/54)] in group D were lower than those in group A [51.57% (82/159), 40.88% (65/159)], group B [50.00% (65/130), 40.77% (53/130)] and group C [49.59% (61/123), 39.02% (48/123)], but the difference was not statistically significant between the four groups ( P=0.310, P=0.781). There were no statistical differences among the four groups in the ratio of male to female newborns, gestational age, birth weight, preterm delivery rate, low birth weight rate, macrosomia rate, birth defects, and premature repture of membranes (all P>0.05). 3) Multiple logistic regression analysis showed that the number of high-quality embryos transferred affected the clinical pregnancy outcome (before PSM, OR=2.614, 95% CI: 2.168-3.151, P<0.001; after PSM, OR=1.984, 95% CI: 1.406-2.800, P<0.001) and live birth (before PSM, OR=2.708, 95% CI: 2.198-3.336, P<0.001; after PSM, OR=2.122, 95% CI: 1.474-3.053, P<0.001). The duration of embryo cryopreservation does not affect the clinical outcome and live birth (all P>0.05). Conclusion:The duration of embryo cryopreservation does not affect the clinical outcome and live birth, but large sample data are still needed to support this conclusion in the future.

Objective To explore the application efficacy and complication occurrences of Tubridge embolization device(TED)and Pipeline embolization device(PED)in the treatment of elderly pa-tients with complex intracranial aneurysm(ICA).Methods A total of 119 elderly patients with complex ICA admitted in our hospital from January 2021 to July 2023 were enrolled,and accord-ing to different devices they used,they were divided into a TED group(n=71)and a PED group(n=48).Device delivery and complications were observed,digital subtraction angiography(DSA)was performed intra-and post-operatively to evaluate the embolization of aneurysms(Raymond grading),and modified Rankin scale(mRS)was adopted to assess the clinical symptoms and prognosis before and at 3 and 6 months after surgery.DSA was applied again at 6 months post-operatively to evaluate the effectiveness of treatment.DSA and magnetic resonance angiography were carried out to record aneurysm images during the follow-up of 3,6 and 12 months after sur-gery.Results There were no statistical differences between the TED group and PED group in terms of the success rate of device delivery and the incidences of intraoperative and postoperative complications,of the intraoperative and postoperative Raymond grades,and of the mRS scores be-fore surgery and at 3 and 6 months after surgery,and of the O-Kelly-Marotta grades and effec-tiveness at 6 months after surgery(P＞0.05).At 3,6 and 12 months after surgery,the complete occlusion rate was 64.8％,63.8％and 69.4％respectively in the TED group,and 70.8％,71.7％and 72.5％respectively in the PED group,and there was no significant difference in the rate be-tween the two groups(P＞0.05).Conclusion TED and PED have similar efficiencies in the suc-cess rate of operation,safety,aneurysm embolization efficacy,immediate and long-term efficacies,and neurological function prognosis in the elderly patients with complex ICA.There exists a cer-tain risk of intraoperative and postoperative complications.Clinically,appropriate blood flow guid-ing devices should be selected based on the patient's actual condition.

BACKGROUND:High-intensity resistance training effectively improves muscle strength,but with a high risk of arteriosclerosis;high-intensity resistance training combined with aerobic exercise effectively reduces the level of arteriosclerosis;low-intensity resistance combined with blood flow restriction training does not require high load strength to stimulate muscles,which may be a scientific training method to improve muscle strength and maintain arterial elasticity.OBJECTIVE:To explore the effects of 12 weeks of low-intensity resistance training combined with blood flow restriction training on body composition,muscle strength,and arterial elasticity in young people,thereby providing theoretical support for the development of personalized training programs.METHODS:Fifty-five college students were randomly recruited and divided by drawing lots into high-intensity resistance training group,high-intensity resistance training combined with aerobic exercise group,and low-intensity resistance training combined with blood flow restriction training group. All participants were subjected to 12 weeks of high-intensity resistance training,high-intensity resistance training combined with aerobic exercise,or low-intensity resistance training combined with blood flow restriction training,and their body composition,muscle strength,and arterial elasticity were tested after training. RESULTS AND CONCLUSION:After 12 weeks of training intervention,the lean body mass of the high-intensity resistance training group and the low-intensity resistance training combined with blood flow restriction training group significantly increased (P<0.05). The one-repetition maximum and knee isokinetic muscle strength significantly increased in all the three groups (P<0.05). The arterial elasticity of the high-intensity resistance training combined with aerobic exercise group and the low-intensity resistance training combined with blood flow restriction training group significantly improved (P<0.05). These findings indicate that 12 weeks of high-intensity resistance training and low-intensity resistance training combined with blood flow restriction training significantly improve body composition;all the three training programs can increase muscle strength;12 weeks of high-intensity resistance training combined with aerobic exercise and low-intensity resistance training combined with blood flow restriction training both improve arterial elasticity,and the effect of low-intensity resistance training combined with blood flow restriction training is superior to that of high-intensity resistance training combined with aerobic exercise. Therefore,it is recommended that low-intensity resistance training combined with blood flow restriction training be used as the preferred training method to improve arterial elasticity,thus reducing the risk of arteriosclerosis.

Objective:To compare the efficacy of two surgical approaches for lumbar Brucellar spondylitis: one-stage posterior approach debridement with intervertebral bone graft fusion and pedicle screw-rod internal fixation (simple posterior group) versus one-stage anterior approach debridement with intervertebral bone graft fusion combined with posterior pedicle screw-rod internal fixation (combined anterior-posterior group).Methods:A systematic search was performed in the Cochrane Library, PubMed, Embase, China National Knowledge Infrastructure (CNKI), Chinese Biomedical Literature Database (CBM), VIP, and Wanfang Data from the time of database establishment to May 2024 to identify randomized controlled trial (RCT) and controlled clinical trial (CCT) comparing the two surgical approaches (simple posterior group and combined anterior-posterior group) in the treatment of lumbar Brucellar spondylitis. Meta-analysis was conducted by two researchers using RevMan 5.4.0 and Stata 13.1 software.Results:A total of 8 studies (2 RCTs, 6 CCTs studies) were included, including 669 patients (344 in the simple posterior group and 325 in the combined anterior-posterior group). Meta-analysis results revealed that the simple posterior group demonstrated shorter surgical time [ WMD = - 125.68, 95% CI ( - 186.84, - 64.53), P < 0.001], less intraoperative bleeding [ WMD = - 385.76, 95% CI ( - 572.40, - 199.11), P < 0.001], shorter hospital stay [ WMD = - 5.60, 95% CI ( - 8.30, - 2.91), P < 0.001], earlier postoperative ambulation time [ WMD = - 6.15, 95% CI ( - 10.72, - 1.59), P = 0.008], and a smaller Cobb angle at 3 months after surgery [ WMD = - 0.66, 95% CI ( - 1.23, - 0.09), P = 0.020]. However, there was no statistically significant differences in erythrocyte sedimentation rate [ WMD = 0.01, 95% CI ( - 0.90, 0.93), P = 0.980], visual analogue scale scores [ WMD = - 0.19, 95% CI ( - 0.40, 0.01), P = 0.070], Oswestry disability index score [ WMD = 0.02, 95% CI ( - 0.61, 0.66), P = 0.950] at 3 months after surgery, and postoperative complication rate [ OR = 0.57, 95% CI (0.17, 1.94), P = 0.370]. Conclusions:Compared with the combined anterior-posterior approach, the simple posterior approach has the advantages of shorter surgical time, less bleeding, and faster postoperative recovery. However, there is no significant difference between the two in terms of symptom improvement, functional recovery, and incidence of complications. Simple posterior approach surgery is an effective choice for treating lumbar Brucellar spondylitis.

Objective To explore the influencing factors of immune-associated thyroid dysfunction caused by sintilimab treatment in solid tumors and construct a prediction model.Methods Medical records of patients diagnosed with solid tumors and treated with sintilimab at Peking University People's Hospital(Xizhimen Campus,Tongzhou Campus,Shijiazhuang Campus)from January 2023 to September 2024 were collected to explore the influencing factors that caused immune-related thyroid dysfunction using univariate and multifactorial binary logistic regression analyses and to establish a prediction model.The predictive effect of the model was assessed using the receiver operating characteristic(ROC)curve.Results A total of 120 patients were included,and 33 presented with immune-related thyroid dysfunction.Multifactorial logistic regression analysis revealed that thyroid-stimulating hormone(TSH)[OR=2.470,95%CI=(1.279,4.771)]and treatment cycles[OR=1.298,95%CI=(1.117,1.509)]were independent risk factors for the occurrence of immune-associated thyroid dysfunction,and the difference was statistically significant(P＜0.05).The area under the ROC curve was(0.897±0.043)[95%CI=(0.813,0.981)],the Yoden index was 0.703,and the model prediction accuracy was 86.5%.Conclusion The risk of immune-related thyroid dysfunction caused by sintilimab is high,and TSH and treatment cycle are the influencing factors,and the constructed model has certain predictive value and is of reference significance.