Objective:To observe the correlation between blood cell-related inflammatory markers and diabetic retinopathy (DR).Methods:A cross-sectional study. From June 2020 to February 2022, the phase Ⅰ data of Beichen Eye Study in Tianjin Medical University Eye Hospital were included in the study. The research contents included questionnaires, routine systemic and ocular examinations, and laboratory blood cell-related indicators including mean platelet volume (MPV), platelet distribution width (PDW), neutrophils, and lymphocytes were performed. Neutrophil/lymphocyte ratio (NLR) and platelet/lymphocyte ratio (PLR) were calculated. The diagnosis and classification of DR referred to the international clinical classification standard of DR. Monocular or binocular DR was defined as DR patients. Participants were categorized into different groups based on whether they had diabetes and whether they had DR. The groups included the no-diabetes group, the diabetes without DR group, and the DR group. The Kruskal-Wallis H test was used for the comparison of quantitative data among multiple groups. Wilcoxon test was used for comparison between the two groups. The χ2 test was used to compare the categorical variables between groups. The variables was adjusted step by step, an unadjusted univariate model was built and the different parameters of the model Ⅰ, Ⅱ, Ⅲ were adjusted. The correlation between MPV, PDW, NLR, PLR, and DR in different models was analyzed by logistic regression. The receiver operating characteristic (ROC) curve was used to analyze the diagnostic efficacy of different NLR models for DR. Results:A total of 3 328 subjects were recruited. Among them, 1 121 (33.68 %, 1 121/3 328) were males and 2 207 (66.32 %, 2 207/3 328) were females. The median age of the included participants was 61.84 (6.05) years. The no-diabetes group, the diabetes without DR group, and the DR group were 2 679, 476, and 173, respectively. There was no significant difference in MPV and PLR among the three groups ( H=5.98, 1.94; P=0.051, 0.379). However, compared with no-diabetes group and the diabetes without DR group, PDW and NLR in the DR group showed an upward trend. In model Ⅲ with completely adjusted related factors, NLR was an independent risk factor for DR in no-diabetes group and DR group [odds ratio ( OR)=1.440, 95% confidence interval ( CI) 1.087-1.920, P=0.041], diabetes without DR group and DR group [ OR=1.990, 95% CI 1.440-2.749, P<0.001]. The results of ROC curve analysis showed that the diagnostic efficiency of NLR model Ⅲ was the highest, the area under the curve was 0.751 (95% CI 0.706-0.796, P<0.001), the optimal cutoff value was 0.390, and the sensitivity and specificity were 74.3% and 64.8%, respectively. Conclusions:The NLR of the DR group is significantly higher than that of the no-diabetes group and diabetes without DR group. NLR is an independent risk factor for DR.

Mesenchymal to epithelial transition factor (MET) gene alterations involve in the proliferation, invasion, and metastasis of non-small cell lung cancer. MET-tyrosine kinase inhibitors (TKIs) have been approved to treat non-small cell lung cancer with MET alterations, and resistance to these TKIs is inevitable. Molecular mechanisms of resistance to MET-TKIs are completely unclear. The review focused on potential mechanisms of MET-TKIs resistance and therapeutics strategies to delay and prevent resistance.
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Humans ; Carcinoma, Non-Small-Cell Lung/pathology* ; Lung Neoplasms/pathology* ; ErbB Receptors/genetics* ; Drug Resistance, Neoplasm/genetics* ; Protein Kinase Inhibitors/therapeutic use* ; Epithelial-Mesenchymal Transition ; Mutation

[摘 要] 目的：探讨结直肠癌（CRC）组织中磷酸甘油酸变位酶1（PGAM1）的表达及其与患者预后的关系，研究PGAM1对CRC细胞增殖、迁移和侵袭的影响。方法：选择2003年3月至2008年11月间在天津医科大学肿瘤医院手术切除的30例CRC患者的肿瘤组织标本及临床资料，采用免疫组织化学染色法检测CRC组织中PGAM1蛋白的表达，分析PGAM1表达与患者临床病理特征的关系，Kaplan-Meier生存分析法比较PGAM1高表达与低表达患者的OS、PFS来评价PGAM1表达与患者预后的关系。利用RNA干扰技术分别将si-PGAM1及si-NC质粒转染至HCT-116和SW480细胞，WB法检测转染细胞中PGAM1蛋白的表达水平，CCK-8、Transwell实验分别检测敲低PGAM1对CRC细胞增殖、迁移和侵袭的影响。结果：30例CRC组织中PGAM1阳性染色定位于CRC细胞的细胞质，其中33.3%（10/30例）呈高表达。虽然PGAM1高表达与CRC患者年龄、性别、组织学类型、肿瘤大小、淋巴结转移、远处转移及临床TNM分期无关（均P>0.05），但是PGAM1高表达与低表达患者相比其OS、PFS显著缩短。在CRC细胞中敲低PGAM1后，细胞的增殖、迁移和侵袭能力均显著降低（均P<0.05）。结论：CRC组织中PGAM1呈高表达，PGAM1高表达的患者预后较差；敲低PGAM1后细胞的增殖、迁移及侵袭能力均显著降低，提示PGAM1可能是CRC患者预后的生物标志物。

Autogenous odontogenic materials are a new, highly biocompatible option for jaw restoration. The inorganic component of autogenous teeth acts as a scaffold to maintain the volume and enable donor cell attachment and proliferation; the organic component contains various growth factors that promote bone reconstruction and repair. The composition of dentin is similar to that of bone, which can be a rationale for promoting bone reconstruction. Recent advances have been made in the field of autogenous odontogenic materials, and studies have confirmed their safety and feasibility after successful clinical application. Autogenous odontogenic materials have unique characteristics compared with other bone-repair materials, such as the conventional autogenous, allogeneic, xenogeneic, and alloplastic bone substitutes. To encourage further research into odontogenic bone grafts, we compared the composition, osteogenesis, and development of autogenous odontogenic materials with those of other bone grafts. In conclusion, odontogenic bone grafts should be classified as a novel bone substitute.

Autogenous odontogenic materials are a new, highly biocompatible option for jaw restoration. The inorganic component of autogenous teeth acts as a scaffold to maintain the volume and enable donor cell attachment and proliferation; the organic component contains various growth factors that promote bone reconstruction and repair. The composition of dentin is similar to that of bone, which can be a rationale for promoting bone reconstruction. Recent advances have been made in the field of autogenous odontogenic materials, and studies have confirmed their safety and feasibility after successful clinical application. Autogenous odontogenic materials have unique characteristics compared with other bone-repair materials, such as the conventional autogenous, allogeneic, xenogeneic, and alloplastic bone substitutes. To encourage further research into odontogenic bone grafts, we compared the composition, osteogenesis, and development of autogenous odontogenic materials with those of other bone grafts. In conclusion, odontogenic bone grafts should be classified as a novel bone substitute.

OBJECTIVE: To introduce the efficacy of three surgical options for juvenile nasopharyngeal angiofibroma (JNA) resection, and causes of operative bleeding. METHOD: Retrospective analysis of 36 JNAs,three surgical options were used to resect the tumor. There were 15 cases of Class I tumors , using endoscopic nasal cavity approach. Eighteen cases of class II tumors, via extended Caldwell-Luk incision, using the transantral-infratemporal fosse-nasal cavity combined approach for tumor resection. Three cases of class III tumors, the combined intracranial and extra-cranial approach was used to resect the tumor. Meanwhile, report six typical cases for reference. RESULT: Fifteen (15/36) cases of class I tumors, 14 cases were completely resected for the first time without recurrence, 1 recurrence case was re-resected using the same approach. Eighteen (18/36) cases of class II tumors, 13 cases were completely resected for the first time without recurrence, 5 recurrence cases were re-resected totally. Three (3/36) cases of class III were not completely removed, and underwent about 40 Gy radiotherapy with good effects. CONCLUSION Using these three surgical options can effectively remove different types of JNA. When necessary, the intracranial residue can use radiotherapy. Under direct vision to separate the tumor, and effective hemostasis play crucial roles for complete removal of the tumor.
Adolescent ; Angiofibroma ; surgery ; Blood Loss, Surgical ; Child ; Female ; Humans ; Male ; Nasopharyngeal Neoplasms ; surgery ; Retrospective Studies ; Treatment Outcome ; Young Adult

OBJECTIVE: To our knowledge, study of the intraoperative profuse bleeding of pterygoid venous plexus (PVP) in large nasopharyngeal angiofibroma resection has not yet been reported. Attention should be paid to this topic in clinical practice. METHOD: From 1981 to 2009, 44 cases of JNAs were treated in our hospital. Twenty-six of 44 cases were large nasopharyngeal angiofibromas according to the Fisch classification system(Fisch type III 16, type IV 10). The amount of intraoperative blood loss in these 26 cases varied from 200 ml to 5200 ml. Factors influencing intraoperative bleeding of 26 large nasopharyngeal angiofibroma resections were analyzed retrospectively. The intra-operative observations and imaging data of three typical cases were hereby studied. RESULT: After embolization of the tumor-supplying branches of the external carotid artery(ECA), both the intraoperative observations and imaging data demonstrated that the pterygoid venous plexus (PVP) played a crucial role in intraoperative hemorrhage. CONCLUSION PVP in the infratemporal fossa communicates with craniofacial veins. There is no valve between these veins. Once PVP is seriously damaged, venous blood of all craniofacial veins will flow out profusely. In the first operation, the intact PVP in the fatty pad generally can be identified and separated from the tumor by delicate surgical managements. If an unsuccessful operation due to serious hemorrhage had been done previously, then scar tissue might tightly adhere with PVP, tumor and the pterygoid muscles, and separation of the tumor from PVP without bleeding is more difficult. Appropriate surgical approach and correct hemostatic procedure of every bleeding point should be done carefully under direct vision. Using finger or instrument for quick blind dissection should be prohibited.
Adolescent ; Angiofibroma ; pathology ; surgery ; Blood Loss, Surgical ; Hemorrhage ; prevention & control ; Humans ; Male ; Nasopharyngeal Neoplasms ; pathology ; surgery ; Retrospective Studies ; Veins ; surgery ; Young Adult