Objective To investigate the interaction between NMDA receptor subunit 2B (NR2B) and metabotropic glutamate receptor 5 (mGluR5) in the spinal cord of morphine-tolerant rats. Methods Sixteen male SD rats weighing 220-280 g were randomly divided into 2 groups with 8 rats in each group: control group (C) and morphine group (M). In group M morphine 10μg was administered intrathecally (IT) twice a day for 7 consecutive days. In group C equal volume of normal saline was given instead of morphine. Tail flick latency (TFL) (a segment of tail 4-5 cm long was immersed in 52-53℃ hot water) was used to measure the antinocicepitve effect of morphine before and 30 min after morphine administration every morning. MPE (percentage of maximal possible effect) was calculated (pain threshold after drug administration - baseline pain threshold)/(10- baseline pain threshold)× 100% . The animals were killed at the next day after last IT administration and the dorsal half of L4-5 spinal cord was isolated and homogenized for determination of NR2B and mGluR5 protein expression by Western blot and CO-IP. Results MPE was significantly increased at 1-5 d of drug administration and returned to baseline at 7 d in group M as compared with group C. The mGluR5 protein expression was significantly up-regulated in group M as compared with group C but there was no significant difference in NR2B protein expression between the 2 groups. Conclusion There is interaction between NK2B and mGluR5 in the spinal cord of morphine-tolerant rats.

The Tongmai Yangxin pill (TMYX) has potential clinical effects on no-reflow (NR); however, the effective substances and mechanisms by which this occurs remain unclear. This study evaluates the cardioprotective effects and molecular mechanisms of TMYX against NR. We used a myocardial NR rat model (2 h after myocardial ischemia and 2 h after reperfusion) to confirm the effect and mechanism of action of TMYX in alleviating NR. In vitro studies in isolated coronary microvasculature of NR rats and in silico network pharmacology analyses were performed to reveal the underlying mechanisms of TMYX and determine the main components, targets, and pathways of TMYX, respectively. The experiment was approved by the Ethics Committee of Hunan University of Chinese Medicine (LLBH-202212160001). TMYX showed therapeutic effects on NR by improving cardiac structure and function, reducing NR, ischemic areas, and cardiomyocyte injury, and decreasing the content of cardiac troponin I (cTnI). Moreover, the mechanism of TMYX predicted by network pharmacology is related to the hypoxia inducible factor-1 (HIF-1), nuclear factor kappa-B (NF-κB), and tumor necrosis factor (TNF) signaling pathways. TMYX increased the expression of G protein-coupled estrogen receptor (GPER), phospho-extracellular signal-regulated kinase (p-ERK), and HIF-1α. In vitro, TMYX enhanced the diastolic function of coronary microvascular cells; however, this effect was inhibited by GPER inhibitor (G-15), eNOS inhibitor (L-NAME), and sGC inhibitor (ODQ). This study integrates pharmacology and experimental evaluation to reveal that TMYX activates HIF-1α/eNOS signaling pathway by upregulating GPER to relax coronary microvessels, thereby significantly alleviating NR.

Atrial Fibrillation ; metabolism ; Connexin 43 ; metabolism ; Humans ; Oxidative Stress

Aged ; Dexmedetomidine ; pharmacology ; Extracorporeal Circulation ; Female ; Heart Valve Prosthesis Implantation ; adverse effects ; Humans ; Inflammation ; Interleukin-6 ; blood ; Interleukin-8 ; blood ; Intraoperative Period ; Male ; Middle Aged ; Tumor Necrosis Factor-alpha ; blood

Child ; Female ; Hamartoma ; diagnosis ; pathology ; surgery ; Humans ; Tracheal Diseases ; diagnosis ; pathology ; surgery

Adult ; Cranial Nerve Neoplasms ; diagnosis ; Diagnostic Errors ; Facial Nerve ; pathology ; Hemangioma ; diagnosis ; Humans ; Male

Objective To investigate the effect of radiotherapy combined with interventional therapy on the changes of vascular endothelial growth factor (VEGF) in patients with advanced cervical cancer.Methods 62 cases of cervical cancer collected in the first people’s hospital of jingzhou city during January 2009 to February 2014 were randomly divided into two groups.The patients in group A were treated with radiotherapy, and the patients in group B were treated with radiotherapy combined with interventional therapy.The level of vascular endothelial growth factor in two groups after treatment was measured by enzyme-linked immunoassay.Results The level of vascular endothelial growth factor of group A was ( 241.77 ±85.86 )μg/L, significantly higher than ( 124.66 ±65.86 )μg/L of group B.The level of vascular endothelial growth factor was related with cervical deterioration degree, tumor stage and lymph nodes metastasis (P<0.05),not with the patient’s age, and the size of the tumors.The level of vascular endothelial growth can reflect the clinical efficacy of patients after therapy (P<0.05).Conclusion Vascular endothelial growth factor level has a close relationship with the degree of deterioration of cervical cancer, tumor staging, lymph node metastasis and the curative effect after the interventional therapy.

Adolescent ; Adult ; Ammonia ; adverse effects ; Burns, Chemical ; etiology ; therapy ; Burns, Inhalation ; etiology ; therapy ; Female ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Young Adult

Objective This study is to investigate the influences of USP7 on the cytobiological characteristics of laryngeal cancer cells by small interfering RNA (siRNA) interfering the USP7 expression in the laryngeal cancer cells .Methods The self‐de‐signed highly efficient siRNA was used to conduct the specific interference on USP7 expression in laryngeal cancer HEP2 cells . Then the influence on the capacity of cell proliferation and migration ,as well as apoptosise after USP7 interference were observed by using the CCK‐8 method ,Transwell chamber migration test and flow cytometry .Results The self‐designed siRNA could effi‐ciently inhibit the expression of USP7 mRNA in laryngeal cancer cells ,furthermore markedly suppressed the proliferation and mi‐gration of laryngeal cancer cells ,enhanced the cell apoptosis in laryngeal cancer HEP2 cells in vitro .Conclusion The siRNA inter‐fering USP7 can inhibit the proliferation and migration capacity of laryngeal cancer cells ,and promoted their apoptosis .

Objective To analyze the clinical and radiographic features of short stature combined with skeletal deformity in children,and to diagnose exactly and cure promptly in children.Methods One hundred and twenty children were collected,included 69 males and 51 females.All of the children were collected detail medical history including history of birth,feeding,growth and development and family history and taken both physical and X ray examination that bone age could be evaluate by Gruelich-Pyle method.The children were taken a laboratory examination including calcium,phosphours,alkaline phosphatase,chromosome karyotype,and so on.Results Among 120 children,there were 36 cases(30.0%) of achondroplasia,20 cases(17.0%)of Turner syndrome,10 cases(8.0%)of multiple epiphyseal dysplasia,1 case(0.8%)of spondyloepiphseal dysplasia congenital,7 cases(5.8%) of spondyloepiphyseal dysplasia tarda,2 cases(1.6%) of osteogenesis imperfecta,1 case(0.8%) of cleidocranial dysplasia,5 cases(4.2%)of mucopolysaccharide Ⅳ,5 cases(4.2%) of pseudoachondroplasia,9 cases(7.5%)of hypophosphatemic ricket,24 cases(20%)of short limb dwarf.Among 120 cases,27 were regularity dwarfism(22.5%),93 cases were irregularity dwarfism(77.5%);Among 93 cases of irregularity dwarfism,80 cases were short limb dwarfism including 36 cases of short upper limb(short upper arm 35 cases,shortforearm 1 case),20 cases of short lower limb,24 cases of proportional short stature,13 cases of short trunk.X ray bone age lag 46 cases,ahead of schedule 15 cases(12.5%),normal 59 cases.Conclusions The main causes of short stature combined with skeletal deformity are genetic bone disease.To analyze the feature of clinical and radiographic is a valuble instrument for the children diagnosis of short stature combined with skeletal deformity.Part of them skeletal age were lagged.