Current study on classification of femoral neck fractures in adults / 中华创伤骨科杂志

Treatment of adult femoral neck fracture is still a great challenge faced by trauma orthopedists. As treatment effects can be infleunced by multiple factors, like age, gender and preoperative physical condition, they may vary with different treatment schemes. Classification of femoral neck fractures plays an important guiding role in choosing a proper treatment scheme and judging the prognosis. The current classic clinical classification systems for femoral neck fractures include Garden, AO/OTA and Pauwels classifications. Since the recent progress in science and technology has put more advanced technologies into clinic application, such as CT, MRI and Digital Subtraction Angiography (DSA), new ways of classification have appeared. However, each classification has its own shortcomings which need to be improved. This paper reviews the research progress in classification of adult femoral neck fractures and their treatment principles.

Investigation on endometrium from menstrual blood as a source of non-invasive tissue / 中华妇产科杂志

Objective To investigate the feasibility of a non-invasive sampling method by collecting menstrual blood and obtaining endometrium for further research in menstruation-related diseases.Methods On the second day of menstruation,menstrual blood was collected with menstrual cups for 4 hours,and the menstrual endometrium was filtered through a metal screen for weighing,cryopreserved,immunohistochemical staining and cell culture.Results The collection process was painless and non-invasive.In the control group,the menstrual volume was (9.1±0.7) ml,and the endometrial tissue weight was (91.0+ 14.7) g.In the endometriosis group,the menstrual volume was (9.6± 1.9) ml (P=0.022),and the endometrial tissue weight was (134.7±43.9) g (P=0.057).Endometrial cell culture was successful in all patients and should not be contaminated.The growth curve was a finite cell line type.The expression of cytokeratin 19 and vimentin in menstrual endometrium and cells were positive.Conclusions By collecting menstrual blood and filtering endometrial tissue,it is an ideal non-invasive sampling method.In combination with advanced experimental technology,menstrual endometrium make further researches of endometriosis,endometrial lesions or other menstruation-related diseases possible.

Using low-coverage whole genome sequencing technique to analyze the chromosomal copy number alterations in the exfoliative cells of cervical cancer / 부인종양

OBJECTIVES: We analyzed the chromosomal-arm-level copy number alterations (CNAs) in the cervical exfoliative cell and tissue samples by using the low-coverage whole genomic sequencing technique. METHODS: In this study, we retrospectively collected 55 archived exfoliated cervical cell suspension samples and the corresponding formalin-fixed and paraffin-embedded tissue section samples including 27 invasive cervical cancer and 28 control cases. We also collected 19 samples of the cervical exfoliative cells randomly from women to verify the new algorithm model. We analyzed the CNAs in cervical exfoliated cell and tissue samples by using the low-coverage next generation of sequencing. RESULTS: In the model-building study, multiple chromosomal-arm-level CNAs were detected in both cervical exfoliated cell and tissue samples of all cervical cancer cases. By analyzing the consistency of CNAs between exfoliated cells and cervical tissue samples, as well as the heterogeneity in individual patient, we also established a C-score algorithm model according to the chromosomal-arm-level changes of 1q, 2q, 3p, 7q. The C-score model was then validated by the pathological diagnosis of all 74 exfoliated cell samples (including 55 cases in model-building group and 19 cases in verification group). In our result, a cutoff value of C-score > 6 showed 100% sensitivity and 100% specificity in the diagnosis of cervical cancer. CONCLUSION: In this study, we found that CNAs of cervical exfoliated cell samples could robustly distinguish invasive cervical cancer from cancer-free tissues. And we have also developed a C-score algorithm model to process the sequencing data in a more standardized and automated way.

Pro-inflammatory and anti-inflammatory cytokine responses of peripheral blood mononuclear cells in apparently healthy subjects / 南方医科大学学报

<p><b>OBJECTIVE</b>To examine the changes in the expression of pro-inflammatory and anti-inflammatory cytokines in the peripheral blood mononuclear cells (PBMCs) and elucidate the inflammatory status of apparently healthy subjects.</p><p><b>METHODS</b>Peripheral blood samples (5 ml) were collected after fasting for more than 8 h from 14 healthy control subjects and 14 apparently healthy subjects with elevated serum high-sensitivity CRP (hsCRP) level (≥ 2.0 mg/L). PBMCs were separated by Ficoll density gradient centrifugation and the total RNA was extracted for real-time quantitative PCR analysis of the inflammatory cytokines, and plasma was separated for ELISA analysis of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) expressions.</p><p><b>RESULTS</b>The gene expressions of TNF-α and MCPIP were significantly increased in PBMCs of apparently healthy subjects, while IL-6 and MCP-1 only showed slight elevations; IL-10 expression in PBMCs decreased significantly in apparently healthy subjects as compared to that in the control group. The results of ELISA showed significantly elevated TNF-α level without significant changes of plasma IL-6 level in apparently healthy subjects.</p><p><b>CONCLUSION</b>In apparently healthy subjects with normal lipid levels, chronic low-grade inflammation has occurred shown by elevated expressions of the pro-inflammatory cytokines and lowered expressions of the anti-inflammatory cytokines.</p>

Clinical study of laparoscopic pelvic lymphadenectomy assisted radical vaginal hysterectomy (LARVH) in the treatment of cervical cancer / 中国医师杂志

Objective To discuss clinical effect and feasibility of laparoscopic pelvic lymphadendenectomy assisted radical vaginal hysterectomy (LARVH) in the treatment of cervical cancer. Methods Laparoscopic pelvic lymphadendenectomy assisted radical vaginal hysteretomy was performed in 38 patients with cervical cancer. The operative quality and postoperative recovery effects were analyzed. Results All 38 patients were successfully performed with LARVH and no complications. The radical vaginal hysteretomy were performed in all of patients, 21.4±2.2 pelvic lymph nodes were removed. The average duration of surgery was (240±25.6) min and the average hemorrhage was (340±40.2) ml. There were 7 patients who needed blood transfusion during operation. After operation, the mean time for passage of gas by anus was (2±0.26) days, and the mean recovery time of bladder function was (10.5±1.3) days. Patients were discharged after (9.2±1.1) days on average. 38 patients had no complication. Conclusions For the treatment of uterine neoplasm, LARVH decreased operative damage with more short recovery time, same operative extent as laparotomy. It is an ideal way to treat uterine neoplasm currently.