Objective To explore the effect of early intervention on myelin-associated glycoprotein (MAG) expression of white matterin neonatal rats with cerebral brain injury caused by intrauterine infection. Methods 17 days or 18 days pregnant Wistar rats were consecutivelyinjected with lipopolysaccharide (LPS) intraperitoneally. 100 neonatal rats born from LPS group were randomly divided into interventiongroup and non-intervention group with 50 in each group. Another 10 pregnant rats were injected with normal saline, 50 neonatal rats born from the the normal saline group were taken as control group. The intervention group received early intervention and rehabilitationtraining. All the groups underwent hanging test and modified BBB test on the 14th, 21st and 28th day. 6 rats in each group were tested by immunohistochemicalstaining to observe the MAG expression in white matter on the 1st, 7th, 14th, 21st, 28th day. Results The scores of hangingtest and modified BBB test were significantly higher in the control group than in the LPS group (P<0.01), and higher in the interventiongroup than in the non-intervention group (P<0.01). The expression of MAG was higher in LPS group than in the control group (P<0.01), innon-intervention group than in the intervention group (P<0.01). Conclusion Early intervention and rehabilitation training can improve themotor function in rats with brain injury and reduce the expression of MAG.

Objective To investigate the therapeutic effect on ulcerative colitis by methods of reinforcing qi,strengthing spleen and clearing heat antitoxicant. Methods 99 patients were divided into two groups randomly:the treatment group for oral and enteroclyste use with TCM following in the principle mentioned above,the control group for oral and enteroclyste use with western medicine following in the common practice. Comparative studies on the total therapeutic effect and the improvement of TCM syndromes between the two groups were made. Meanwhile,the Pearson correlation analysis were made to explore the relationship between the clinical effectiveness and impact factors in two groups. Results There were significant differences in the total curative effect and the improvement of TCM syndromes between two groups (P

AIM: To study the effects of Rhodiola(Rho), nitric oxid e (NO), hem oglobin (HB) on the multiple organ dysfunction syndrome(MODS) in early stage aft er burn in rabbits. METHODS:The rabbits were divided into the sh am burn group (SB), burn group (B), orally taken Rho group (R), burn and Rho therapy group (BR ). The changes of hemodynamics were monitored. The index of pulmonary permeabili ty was calculated. These data reflected separately the functions of heart, live r, lung, kidney and blood coagulation system were also determined. NO contents i n ser um and bronchoalveolar lavage fluid (BALF) were measured by Griess method. The l e vels of serum HB were measured. RESULTS:① The dysfunctions of hear t, liver and kidney achieved the criterion of MODS in group B at 48 h postburns (B 48 h ). The N O content of group B significantly increased in serum and BALF at B 48 h . ② The cardiac index (CI) and creatine phosphokinase (CK), urea nitrogen (BUN) markedly raised or decreased in group BR at 48 h postburns (BR 48 h ) than B 48 h . The NO cont ents in serum and BALF markedly raised. ③ HB contents in serum markedly raised in group B and BR at 0 h postburns (B 0 h , BR 0 h ) than group SB, B 48 h , R, BR 48 h , but NO was reverse. CONCLUTIONS: ① HB contents in serum markedly raise d at 0 h post burns, but NO was reverse. ② Rho promoted the increases of NO synthesis and the blood perfusion of organs, which might be one of mechanisms to prevent the devel opment of MODS.

Purpose To investigate the expression of insulin-like growth factorIImRNA binding protein 3 ( IMP3 ) and microvessel density (MVD) in squamous carcinoma of the cervix (SCC) and analysis their relationship in SCC. Methods The expression of IMP3 and MVD was examined by immunohistochemistry SP method in normal cervical epithelium ( NCE) , low-grade cervical intraepi-thelial neoplasia (CIN-L), high-grade cervical intraepithelial neoplasia (CIN-H) and SCC. Results (1)The positive expression rates of IMP3 in NCE, CIN-L, CIN-H, SCC tissues were 0(0/15), 0(0/11), 37.5%(9/24) and 86.0%(43/50), the difference was statistically significant (x 2 =53.345, P=0.000). IMP3 expression was significant difference among NCE and CIN-H, SCC (P<0.008 3), and that was also among SCC and CIN-L, CIN-H (P<0.008 3). (2)The MVD count was increased with the development of cervical squamous lesion, there was significant difference among those groups (F=145.968, P<0.01), and the difference was al-so statistically significant between every two groups (P<0.05). The positive expression of IMP3 and MVD count in 50 cases of SCC tissues showed statistical difference in different pathologic grade, lymph node metastasis, and depth of tumor invasion groups ( P<0.05), but didn't in different patients’age groups (P>0.05). And the positive expression of IMP3 was closely related with MVD count in SCC tissues (rs =0.323, P<0.05). Conclusion IMP3 plays an important role in the occurrence, infiltration and metasta-sis of SCC, and the abnormal expression of IMP3 may relate with the angiogenesis of tumors.

This study aimed to examine whether ophiopogonin D (OP-D) is capable of protecting cardiomyocytes against DOX-induced injury and the mechanisms involved. H9c2 cells were cultured. MTT assay was used to evaluate cell viability and toxicity. Mito-tracker as fluorescence probe was used to measure ROS content raised from mitochondria. The mRNA and protein expression of ATF6alpha, GRP78 and CHOP were analyzed using real-time PCR and Western blotting, respectively. The results showed that a significant endoplasmic reticulum stress (ERS) was induced upon exposure of H9c2 cells to DOX as indicated by the increase in the expression of ERS related proteins, which was paralleled with the accumulation of reactive oxygen species (ROS) and decrease in the viability of H9c2 cells. Whereas, DOX-induced ROS accumulation and up-regulation of ERS related proteins were partially abolished by pretreatment with OP-D. Consequently, a DOX-induced ERS was mitigated by application of OP-D. Similarly, DOX-induced decrease in cell viability was partially attenuated by either inhibiting CHOP or pretreatment with N-acetylcysteine (NAC), an antioxidant. Moreover, cardiac ultrastructural abnormalities seen in mouse receiving DOX injections were obviously ameliorated by pretreatment of OP-D. Taken together, the present study proved that OP-D protects cardiomyocytes against DOX-induced injury, at least in part, through reducing ROS accumulation and alleviating ERS.

Objective To investigate the value of nasal continuous positive airway pressure (NCPAP) in the treatment of severe pneumonia. Methods The clinical data of 59 severe pneumonia infants who received NCPAP preferential ventilation strategy were retrospectively analyzed. Results After treatment, 50 infants were effective and 9 infants were ineffective. Before treatment, the age, RR, HR between effective group and ineffective group had no significant differences (P>0.05). But the levels of PaCO2, PaO2/FiO2 in ineffective group were significantly higher than those in effective group and the level of PaO2 in ineffective group was significantly lower than that in effective group (P<0.05). In effective group, the levels of PaO2 and PaO2/FiO2 were significantly increased after treatment for 1, 12 and 24 h, and the levels of PaCO2, RR and HR were significantly decreased (P<0.01). Conclusions NCPAP preferential ventilation strategy can reduce the use of invasive mechanical ventilation, improve oxygenation, ease dyspnea and make vital signs stable.

OBJECTIVE: To observe the effect of Naoling decoction on the learning and memory behaviors and the expression of microglia and IL-6 in hippocampal CA3 region of rats with Alzheimer's disease (AD), and to elucidate the potential mechanism. METHODS: Thirty SD rats were randomly divided into 5 groups: a normal group, a sham-operation group, an AD group, a Naoling decoction group and a Naofukang group. The spatial learning and memory behaviors of the rats were investigated by water maze and Y-maze. The Alzheimer's disease model was established by injecting Aβ1-42 into the hippocamal of the rats. Expression of OX-42 (one of the microglia specific markers) and IL-6 in the CA3 region of hippocamal was measured by immunohistochemical stain. RESULTS: Morris water maze experiment showed that the escape latency of hidden platform in the AD group was significantly delayed (P<0.05) and the average times of passing was decreased (P<0.05). Y-maze test showed that the times needed to the learn how to evade the electrical stimulation in the AD group was most than in other groups (P<0.05). Compared with the AD group, the Morris water maze test and Y-maze test of the Naoling decoction group were significantly different (P<0.05). The expression of OX-42 and IL-6 in the CA3 region of hippocamal in the Naoling decoction group was decreased (P<0.05). CONCLUSION Naoling decoction can improve learning and memory, and weaken the expression of OX-42 and IL-6 in hippocampal CA3 of AD rats, which may partly be the therapeutic mechanism of Naoling decoction for AD.
Alzheimer Disease ; drug therapy ; metabolism ; Animals ; CA3 Region, Hippocampal ; metabolism ; pathology ; Disease Models, Animal ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Interleukin-6 ; genetics ; metabolism ; Learning ; drug effects ; Male ; Memory ; drug effects ; Microglia ; pathology ; Rats ; Rats, Sprague-Dawley

Objective To investigate the shaping rules of the femoral heads in the morphological perspective.The research objects are hips of normal children and children who have developmental dysplasia of the hip(DDH) and after closed reduction or limited open reduction.At the same time measuring and analyzing normal hip femoral head form changing with the children's age.Methods Collecting the DDH cases that after closed reduction and limited open reduction from June 2013 to December 2015.The follow-up period was more than 1 year.MRI images were collected before surgery,6 months after surgery,1 year after surgery,and 2 years after surgery.In addition,normal hip joint MRI images from 0 to 18 years old were collected for controlled study.Descriptive data on the affected side,healthy side and normal hip joint morphology of the hip dislocation were statistically analyzed.Results (1) The mean eccentricity of femoral head in normal hip decreased from (0.362 ±0.069) at 1-2 years to(0.141 ±0.028) at 18-19 years.(2) The eccentricity of femoral head before closed reduction and limited open reduction were both greater than those of healthy side.There was no significant difference in the eccentricity of the femoral head between the healthy side and the affected side at 1 year after closed reduction (P =0.211).There was no significant difference in the diameter of the bilateral femoral heads (P =0.871).The eccentricity of the bilateral femoral heads remained different at 2 years after limited open reduction (P =0.028),and the diameter of the affected femoral head exceeded the healthy side 1 year after surgery (P =0.001).Conclusion The shape of the femoral head of normal children gradually approaches the spherical shape with age.One year after closed reduction of DDH,the shape and size of the affected femoral head are close to the healthy side,and the femoral head of the affected side increases more than the healthy side in 1 ～ 2 years after open reduction and the morphology is still different.

Objective:To investigate the status of We-Media platforms opened and opera-ted by surgeons in tertiary first-class hospitals nationwide and analyze its influence on patients and surgeons.Methods:The retrospective cross-sectional investigation study was conducted. The investigation was conducted on the surgeons who had opened We-Media platforms in their units or associations through the contact of all members of the second Elite Committee of Chinese Digestive Surgery of the Chinese Journal of Digestive Surgery from November 5 to 30, 2021. Questionnaires were distributed through wechat, and the software platform was Questionnaire Star. Observation indicators: (1) results of questionnaire survey; (2) basic information of surgeons running We-Media platforms; (3) daily workload and research background of surgeons running We-Media platforms; (4) information related to We-Media platforms; (5) influence of running We-Media platforms on patients; (6) influence of running We-Media platforms on surgeons; (7) feelings and suggestion of surgeons after running We-Media platforms. Measurement data with normal distribution were expressed as Mean± SD, and count data were expressed as absolute numbers and percentages. Results:(1) Results of questionnaire survey: a total of 229 complete and valid questionnaires were collected in this survey. (2) Basic information of surgeons running We-Media platforms: of 229 surgeons, there were 195 males and 34 females, aged (40±8)years. There were 120 surgeons aged from 36-45 years, 80 surgeons aged <35 years and 29 surgeons aged >45 years. There were 86.46% (198/229) of surgeons from teaching hospitals and 74.67%(171/229) of surgeons from provincial cities. Of 229 surgeons, junior, intermediate, deputy senior and senior titles accounted for 17.90%(41/229), 27.51%(63/229), 37.12%(85/229) and 17.47%(40/229), respectively. Surgeons with working years ≤5 years, 6-10 years, 11-15 years and ≥16 years accounted for 19.21%(44/229), 22.27%(51/229), 26.64%(61/229) and 31.88%(73/229), respectively. Hepatobiliary and pancreatic surgeons, esophageal and gastrointestinal surgeons were the main specialties, accounting for 48.03%(110/229) and 14.41%(33/229), respectively. The original intentions of opening We-Media platforms (multiple choice) included increasing patient population and improving the income, accumulating cases to facilitate clinical research projects, increasing the popularity of the industry and gain peer recognition, increasing social awareness and improving spiritual satisfaction, passive assignments form units or hospitals, which accounted for 52.84% (121/229), 54.15%(124/229), 64.19%(147/229), 58.08%(133/229), 17.90%(41/229), respectively. (3) Daily workload and research background of surgeons running We-Media platforms: 60.26%(138/229) of surgeons participated in offline social welfare activities 1-3 times per year and 26.64%(61/229) of surgeons participated >3 times per year. There were 47.60% (109/229) of surgeons performing 5-10 operations per week and 33.19%(76/229) of surgeons performing >10 operations per week. In terms of scientific researches, 38.43%(88/229) of surgeons had not published high-quality English articles as the first author or co-first author, 24.89%(57/229) of surgeons had published 1-3 articles and 36.68%(84/229) of surgeons had published >3 articles. There were 51.09%(117/229) of surgeons without any longitu-dinal projects, 13.54%(31/229) of surgeons with national projects, 35.37%(81/229) of surgeons with provincial and ministerial projects. (4) Information related to We-Media platforms: there were 65.50%(150/229) of surgeons running wechat public account, 55.02%(126/229) of surgeons running consultation platform, 31.44%(72/229) of surgeons running TikTok, 21.40%(49/229) of surgeons running wechat video account (some surgeons operated multiple We-Media platforms). The time of operating the platform was <1 year in 35.81%(82/229) of surgeons, 1-3 years in 42.79%(98/229) of surgeons, >3 years in 21.40%(49/229) of surgeons, respectively. The contents of We-Media platforms were updated >2 weeks in 45.85%(105/229) of surgeons. There were 63.32%(145/229) of surgeons with We-Media platforms win-ning emotional support from their department or hospital, 12.66%(29/229) of surgeons with We-Media platforms winning financial support. There were 82.53%(189/229) of surgeons operating We-Media platforms by theirselves. The We-Media plat-form operation was smooth in 47.16%(108/229) of surgeons, unsustainable in 50.22%(115/229) of surgeons and suspended in 2.62%(6/229) of surgeons. On average, it took less than 30 minutes for 60.70%(139/229) of surgeons and 30-60 minutes for 27.07%(62/229) of surgeons to operate the We-Media platforms of surgeons every times, respec-tively. The background message or consulta-tion was allowed in 89.08%(204/229) of surgeons. The number of leaving messages was <5 times in 52.84%(121/229) of surgeons and >50 times in 6.99%(16/229) of surgeons. On average, each content in 59.39%(136/229) of surgeons were "liked" or "viewed" <100 times, and each content in 29.26%(67/229) of surgeons were "liked" or "viewed" 100-300 times. There were 60.26%(138/229) of surgeons having content with the highest "liked" or "viewed" clicks <1 000 times and 6.99%(16/229) of surgeons having content with the highest "liked" or "viewed" clicks >10 million times. On average, each content in 74.67%(171/229) of surgeons were "forwarded" <100 times, and each content in 6.55%(15/229) of surgeons were "forwarded" >300 times, respectively. The number of followers was <1 million in 87.34%(200/229) of surgeons. The We-Media audiences (multiple choices) included related professional peers, related health care professionals, patients of surgeons, general public, accounting for 42.36%(97/229), 31.00%(71/229), 52.40%(120/229), 53.71%(123/229), respectively. (5) Influence of running We-Media platforms on patients: 34.93%(80/229) of surgeons believed that the operation of We-Media platform significantly increased the number of outpatient and inpatient patients of themselves, 29.69%(68/229) of surgeons believed that the operation of We-Media platform significantly increased the number of outpatient and inpatient patients in their departments, respectively. In the view of 75.98%(174/229) of surgeons, the percent of outpatient and inpatient patients by We-Media platforms was <10%. After 6 months of We-Media operation, 39.74%(91/229) and 25.33%(58/229) of surgeons believed that inpatient and outpatient compliance was significantly improved, respectively, and 46.29% (106/229) of surgeons believed that preopera-tive and pre-chemotherapy or pre-radiotherapy conversations saved more time. (6) Influence of running We-Media platforms on surgeons: 20.09%(46/229) and 6.55%(15/229) of surgeons attributed the success to "long-term, sustainable, absorbed operation" and "important contents of We-Media platforms and wide audiences". There were 72.49%(166/229) of surgeons yet to be successful. There were 26.64% (61/229) and 22.27%(51/229) of surgeons believing that opening We-Media platforms was conducive to the association's employment and multicenter clinical research. Operating We-Media platforms was conducive to professional knowledge improvement, clinical research ability enhancement and teaching level of students, which was believed by 54.59%(125/229), 40.17%(92/229) and 48.91%(112/229) of surgeons, respectively. Although the total income in 88.65%(203/229) of surgeons increased less than 20% after 6 months of operation, 47.60%(109/229) of surgeons believed that "the sense of achievement or pleasure in work has been significantly improved", and 48.91%(112/229) of surgeons did not have the idea of quitting. There were 7.42%(17/229) of surgeons with the idea of quitting the operation of We-Media platforms. (7) Feelings and suggestions of surgeons after running We-Media platforms: the proportion of surgeons who hoped to get help from departments, hospitals, associations and the society were 61.57%(141/229), 72.05%(165/229), 47.16%(108/229) and 53.28%(122/229), respectively. Only 9.61%(22/229) of surgeons did not require help. Commercial advertisement was allowed by 40.17%(92/229) of surgeons and forbidden by 59.83%(137/229) of surgeons. In terms of alternative suggestion, 70.74%(162/229) of surgeons believed that it was necessary for the We-Media platforms to involve more doctors of different specialties, but 40.61%(93/229) of surgeons believed that relevant departments or associations should strengthen supervision under the current situation. In addition, 32.75%(75/229) of surgeons believed that the operation of We-Media platform requires more investment. The were 27.95%(64/229) of surgeons giving specific suggestions on running We-Media platforms, 7.81%(5/64) of which did not suggest a blind try.Conclusions:Most surgeons who open and operate We-Media platforms in China are faced with problems such as busy work, limited time and energy, low-income increase, and lack of professional promotion and maintenance teams and external support. Even so, there are still many surgeons who have achieved success through long-term persistence and high-quality content output, thus increasing the number of patient visits, improving their own ability and industry influence, and bringing a greater sense of professional achievement.

Purpose: Patients with human epidermal growth factor receptor 2 (HER2)–low advanced breast cancer can benefit from trastuzumab deruxtecan. Given the unclear prognostic characteristics of HER2-low breast cancer, we investigated the prognostic characteristics of HER2-low expression from primary tumor to residual disease after neoadjuvant chemotherapy (NACT). Materials and Methods: The data of HER2-negative patients receiving NACT at our center were collected. Pathological complete response (pCR) rate were compared between HER2-0 and HER2-low patients. The evolution of HER2 expression from primary tumor to residual disease and its impact on disease-free survival (DFS) were examined. Results: Of the 690 patients, 494 patients had HER2-low status, of which 72.3% were hormone receptor (HR)–positive (p < 0.001). The pCR rates of HER2-low and HER2-0 patients (14.2% vs. 23.0%) showed no difference in multivariate analysis regardless of HR status. No association was observed between DFS and HER2 status. Of the 564 non-pCR patients, 57 (10.1%) changed to HER2-positive, and 64 of the 150 patients (42.7%) with HER2-0 tumors changed to HER2-low. HER2-low (p=0.004) and HR-positive (p=0.010) tumors before NACT were prone to HER2 gain. HER2 gain patients had a better DFS compared with HER2-negative maintained patients (87.9% vs. 79.5%, p=0.048), and the DFS of targeted therapy group was better than that of no targeted therapy group (92.4% vs. 66.7%, p=0.016). Conclusion Although HER2-low did not affect the pCR rate and DFS, significant evolution of HER2-low expression after NACT creates opportunities for targeted therapy including trastuzumab.