Objective:To evaluate the accuracy and feasibility of sentinel lymph node biopsy (SLNB) marked by 99Tcm-IT-Ritux-imab and to discuss the clinical value of the method in diagnosis and treatment of cutaneous melanoma. Methods:A total of 67 patients with cutaneous malignant melanoma received 99Tcm-IT-Rituximab-tagged SLNB from March 2008 to March 2012. Lymphoscintigra-phy was conducted 30 min to 1 h after intra-dermal injection of 99Tcm-IT-Rituximab. Subsequently, the surgery of SLNB was carried out using gamma probe. The detection and positive rates of SLNB were counted. The relationship between the status and the clinical features of the sentinel lymph node (SLN) was analyzed, such as the T stage, ulceration, age, gender, and location. The influence of SLN status on overall survival (OS) and disease-free survival (DFS) was evaluated. Results:SLNs were detected in all the 67 patients by SPECT and gamma detector, with detection rate of 100%. Fifteen patients had SLN metastasis, and the positive rate was 22.4%. Chi-square indicates that SLN metastasis is associated with age, T stage, and ulceration (P<0.05). A total of 63 patients were followed up for 24-69 months, and the median follow up time was 43 months. Kaplan-Meier survival analysis shows that both OS and DFS in the SLN-negative group are better than those in the SLN-positive group (OS:93.9%vs. 57.1%, P<0.01;DFS:79.6%versus 28.6%, P<0.01). Cox-regression multiple factors analysis suggests that both SLN status and T stage are independent factors that affect the DFS of malignant melanoma. Conclusion:SLNB assisted by 99Tcm-IT-Rituximab can well reflect the state of lymph node metastasis and is es-sential for accurate staging, prognosis judging, and treatment guiding. Its operation procedure is simple with high accuracy, and the im-aging status is stable. Therefore, it is convenient and feasible as a means of SLNB.

Objective:To explore the outcome of soft tissue sarcoma (STS) on patients with soft tissue metastasis. Methods:We ana-lyzed 25 STS patients with soft tissue metastasis primarily localized on extremity and trunk. The study was conducted from June 2010 to June 2016 by retrospective analysis of the clinical and pathological characteristics of the patients. The assessed endpoints were overall survival. Results:Six patients (24%) had synchronous soft tissue metastasis, and 19 patients (76%) had metachronous metasta-sis. The average time for primary tumor recession of metastatic lesions was 45.3 months. Metastases were most common in parts of the trunk in 18 patients (72%), followed by the head and neck in 5 patients (20%). Eleven patients (44%) with lung metastasis had poor prognosis. Conclusion:STS occurred more rarely in soft tissue metastasis than in pulmonary metastasis. Neoadjuvant chemotherapy and surgical treatment were the major therapies employed. Targeted therapy as a new treatment rendered good results.

Objective Both right and left ventricular function should be taken into account in the assessment of anthracycline (ATC)-induced cardiotoxicity.The aim of this study was to assess the subclinical dysfunction of right cardiac system in patients with newly diagnosed lymphoma who received ATC treatment by echocardiography.Methods A total of 74 patients with lymphoma who received ATC treatment were enrolled.Each patient underwent transthoracic echocardiographic examination before chemotherapy as well as after two,four and six cycles of ATC remedy.Right atrial (RA) and right ventricular (RV) end-diastolic area (EDA) and end-systolic area (ESA) were calculated.RV end-diastolic volume (EDV) and end-systolic volume (ESV),as well as RV ejection fraction (EF) were measured simultaneously.Tissue Doppler imaging (TDI) measurements of systolic and early or late diastolic myocardial velocities of RV free wall at tricuspid annuals were also analyzed.Two-dimensional speckle tracking echocardiography (2DSTE) was conducted to evaluate RV free wall strain along with strain rate.Results None of the echocardiographic parameters showed significant alteration after two and four cycles of chemotherapy compared with those at baseline (P＞0.05).At the end of the therapy (i.e.after six cycles of ATC treatment),there was still no statistical difference on TDI data aswell as 2DSTE measurements (P＞0.05).An unexpected finding was that the RAEDA((6.6±1.9) cm2 vs (7.7±2.4) cm2) and RAESA ((8.8±2.5) cm2 vs (10.8±2.8) cm2) revealed obvious dilatation after six cures of the regimen compared with those at baseline (P＜0.01).Similar morphologic characteristics displayed on the RVEDA ((14.1 ±3.4) cm2 vs (16.2±3.7) cm2) and RVESA ((7.9±1.9) cm2 vs (9.0±2.2) cm2) (P＜0.01)simultaneously.Furthermore,RVEDV ((29.8±10.5) ml vs (37.0±12.7) ml) and RVESV ((12.7±4.4) ml vs (15.0±5.2) ml),as well as RVEF ((59.4±5.8)％ vs (56.4±5.8)％),in patients with lymphoma presented statistically significant difference between basic state and the level after six cycles of chemotherapy (P＜0.01).Meanwhile,no marked change was detected on left ventricular ejection fraction(LVEF) throughout the follow-up period (P＞0.05).Conclusions Echocardiography can be used easily and noninvasively to assess right cardiac system subclinical dysfunction.ATC-induced cardiotoxicity of right cardiac system is firstly manifested as morphological changes than the measurements with novel echocardiographic techniques.In addition,RVEF expresses as a valuable parameter for assessing subtle RV impaired performance in patients with lymphoma received ATC therapy.

BACKGROUND:Autologous bone graft is the best method to repair bone defects after tumor curettage, but its shortcomings are as folows: increased surgical trauma, sequelae at bone graft site such as infection and pain, and a limited amount of autologous bone. OBJECTIVE:To analyze the effectiveness of xenograft and calcium sulphate artificial bone in treating bone defects after benign bone tumor removed. METHODS:Totaly 26 cases of benign bone tumor were selected, including 8 cases of giant celltumor, 5 of enchondroma, 4 of fibrous histiocytoma, 3 of bone fibrous dysplasia, 2 of non-ossifying fibroma, 2 cases of bone cysts, 1 of aneurysmal bone cyst and 1 of aneurysmal bone cyst and 1 case of chondroblastoma. Of the 26 cases, 12 cases underwent calcium sulphate pelets alone to fil bone defects after benign bone tumor removed, 6 cases were subjected to xenograft alone, and 8 cases were treated with calcium sulphate pelets combined with xenograft. The X-rays were taken at 1 week, 3 months, and 1 year after the operation in al patients to assess the bone healing process. RESULTS AND CONCLUSION:Al the patients were folowed up for 36-72 months. The absorption of calcium sulphate appeared to be absorbed earlier, the earlier absorption appearance could be observed as earlier as 1 month after the implantation, and most calcium sulphate was absolved and replaced by new bone at 3 months after the operation. The xenograft bone was degraded at 3 months post implantation and new bone formed. Osseo integration of the graft was observed at the periphery of the implant at 6 months post implantation. One year post implantation, trabecular bone was observed at the site with uniform bone density. In the combined group, thecalcium sulphate pelets were absorbed earlier and new bone formed earlier than the calcium sulphate alone group, and the xenograft absorbed later than the calcium sulphate pelets. Generaly, bony union was detectable 1 year after operation. These findings indicate that xenograft and calcium sulphate in treating benign bone tumor have acquired good results, which can be used as a substitute of autologous bone.

Objective To investigate the value of echocardiographic Tei index combined with serum high-sensitivity cardiac troponin T(hs-cTnT) on monitoring cardiac toxicity associated with anthracycline chemotherapy drug in patients with diffuse large B-cell lymphoma(DLBCL).Methods PW-Tei index,TDI-Tei index of left/right ventricles and radionuclide cardiac measurement were acquired from 56 patients with DLBCL before,after the completion of 2-4 cycle(100-200 mg/m2) and 6-8 cycle(300-400 mg/m2) of the regimen,part of them received serum hs-cTnT detection at the same time.Cardiac toxicity event was defined as a relative reduction of radionuclide left ventricular ejection fraction(LVEF) of ≥10％ during the regime or an absolute radionuclide LVEF≤50％ after the complete chemotherapy.Results Compared with baseline,left ventricular PW-Tei index significantly increased after whole cures [(0.36-± 0.12) vs (0.44 ±0.13) vs (0.40 ± 0.13),P =0.002].After complete regimen,serum hs-cTnT level elevated significantly [(0.006 ± 0.006)tg/L vs (0.012 ± 0.007) μg/L vs (0.020±0.013)tμg/L,P =0.001].The sensitivity,specificity and area under ROC curve of early diagnosis of anthracycline-induced cardiotoxicity with elevated serum hs-cTnT in 2-4 cycle and increased left ventricular PW-Tei index in 6-8cycle detected together were 75％,85％,0.736 and 92％,50％,0.675,respectively(all P ＜0.05).Conclusions Echocardiographic PW-Tei index combined with serum hs-cTnT is a simple method and can be easily obtained in outpatient settings to monitor early cardiac toxicity induced by anthracycline therapy.

AIM: To investigate intracellular free calcium ([Ca 2+ ]i ) alterations in hypothalamus of febrile rabbits induced by endotoxin (ET), and compare with the effect of ET and IL-1? on [Ca 2+ ]i in hypothalamic neurocytes from normothermia rabbits. METHOD: The concentration of [Ca 2+ ]i was determined by using spectrofluorometer and fluorescent Ca 2+ probe fura-2 /Am. RESULTS: 1. A minute dose of ET (2 ng/mL) induced a significant rise in [Ca 2+ ]i in hypothalamic neurocytes from normothermia rabbits. The rise in [Ca 2+ ]i in hypothalamic neurocytes from febrile rabbits induced by intravenous injection of ET was also observed. 2. In hypothalamic neurocytes from normotheria rabbits, IL-1? failed to affect [Ca 2+ ]i at concentrations of 100, 500, 1 000 ng/mL, respectively. CONCLUSION:The action site of low concentration of calcium that plays a regulatory role during fever seems unlikely to be in cytosolic compartment of hypothalamic neurons. The change of [Ca 2+ ]i in hypothalamic neurocytes by ET can not be considered the direct effect of IL-1?.

AIM and METHODS:To investigate the effect of electrical stimulation of VSA on the firing of thermosensitive neurons in preoptic anterior hypothalamus (POAH), the firing rate of thermosensitive neurons in POAH of 20 New Zealand white rabbits was recorded by using extracellular microelectrode techinque. RESULTS:(1)Electrical stimulation of ventral septal area (VSA) caused a significant increase in firing rate of warm-sensitive neurons in the preoptic area of the anterior hypothalamus(POAH).(2) The firing rate of cold-sensitive neurons was decreased remarkably in the POAH by electrical stimulation of VSA. CONCLUSION:VSA may play a controlling role in the thermoregulation through altering the firing rate of thermosensitive neurons in the POAH.

Objective:To analyze the clinical prognostic factors of liposarcoma on the extremities and trunk, as well as to retrospectively analyze the effect of adjuvant radiotherapy and chemotherapy on liposarcoma of the extremities. Methods:Patients with liposarcoma of the extremities treated in our hospital from July 1, 2007 to December 31, 2012 were followed up. The relationship of clinical prognostic factors with gender, age, location, depth, and size of the tumors, as well as the histological grade and admission status, were statistically analyzed. The effects of adjuvant radiotherapy or chemotherapy on overall survival (OS) and disease free survival (DFS) were evaluated. Results:A total of 82 patients with extremity liposarcoma received surgery-based comprehensive treatment in our hospital. Of the total patients, 73 received a 24-month to 88-month satisfied follow-up;the median follow-up time was 47 months. The OS rate was 83.6%(61/73), and the DFS rate was 68.5%(50/73). Multivariate Cox regression analysis showed that the tumor location, histological grade, and admission status were the independent correlative factors influencing DFS, and the age and pathologic grading were the independent correlative factors influencing the OS. Kaplan-Meier survival analysis showed that radiation therapy can significantly improve the DFS and OS of the G2 and G3-grade liposarcoma (DFS:59.1 months vs. 28.4 months, P<0.01;OS:70.8 months vs. 55.1 months, P<0.05). Significant difference was not found in the effect of chemotherapy on OS and DFS. Conclusion:The prognosis of liposarcoma was significantly associated with the pathologic grades and subtypes. Auxiliary radiotherapy could improve the survival and prognosis of G2 and G3 liposarcoma of the extremities, but the role of chemotherapy in treating liposarcoma remained unclear.

AIM and METHODS: To investigate the effect of electrical stimulation of VSA on the firing of thermosensitive neurons in preoptic anterior hypothalamus (POAH), the firing rate of thermosensitive neurons in POAH of 20 New Zealand white rabbits was recorded by using extracellular microelectrode techinque. RESULTS: (1)Electrical stimulation of ventral septal area (VSA) caused a significant increase in firing rate of warm-sensitive neurons in the preoptic area of the anterior hypothalamus(POAH).(2) The firing rate of cold-sensitive neurons was decreased remarkably in the POAH by electrical stimulation of VSA. CONCLUSION: VSA may play a controlling role in the thermoregulation through altering the firing rate of thermosensitive neurons in the POAH .

AIM: To explore effects of glycine and polymyxin B mixture (Gly/PMB) on endotoxin-induced acute phase response in vivo . METHODS: Model of acute phase response was reconstructed by endotoxin (ET) in rabbits. Specimens of blood were collected at 1 hour after the highest body temperature. Leukocyte count, serum C-reactive protein and trace element were also detected. RESULTS: Pretreatment of half-dose Gly/PMB significantly inhibited acute phase response induced by ET ( P 0.05). CONCLUSION: These results suggested that glycine enhanced the inhibitory effect of polymyxin B on ET-induced acute phase response. The advantage of glycine and polymyxin B mixture was decreasing dosage and side effects of polymyxin B. [