Objective To investigate the effect of ifenprodil in the mice of bone cancer pain.Methods 96 male C3H/HeJ mice were divided randomly into tumor group( Group T),control group( Group C) and sham group( Group S).The α-minimal essence media(ct-MEM) with 2 × l05 osteosarcoma NCTC 2472 cells were implanted into the intramedullary space of the right femurs of mice to induce ongoing bone cancer related pain behaviors.The sham group was inoculated by α-MEM without any cells.On the 14th d after inoculation,pain ethology indexes such as the spontaneous lifting behaviors,the paw withdrawal mechanical threshold(PWMT) and the paw withdrawal thermal latency (PWTL)were observed on 1 d before inoculation and on 3 d,5 d,7 d,10 d,14 d,17 d,19 d,23 d after inoculation.Lumbar intumescentia of mice in each group were taken out to investigate the expression level of NR2B western blot after pain behaviors tests at the same time point after intrathecal injection.Results ( 1 ) At day14 after the operation,the obvious increasing of spontaneous lifting behaviors ( ( 12.88 ±1.64) ) and the expression of NR2B (2.12 ±0.13),the significant decreasing of PWMT( (0.39 ±0.17)g) and PWTL( ( 11.59 ± 1.67 ) s ) were observed in group T compared with group S and preoperative base level (P ＜ 0.05 ).(2) At day 17,day 19 and day 23 after the operation,compared with the basal level of dayl4 before administration and group C,the spontaneous lifting behaviors ( (5.13 ± 1.38),(4.70 ± 1.58),(5.64 ± 1.17) ) of group T were obviously decreased,PWMT ( ( 1.10 ± 0.65 ) g,( 0.95 ± 0.56 ) g,( 1.05 ± 0.26 ) g) and PWTL ( ( 15.17 ± 1.27) s,( 15.93 ± 2.18 ) s,( 16.28 ± 1.48 ) s ) were increased,the expression of NR2B ( ( 1.42 ± 0.17),(1.67 ±0.53),(1.14 ±0.79) ) were significantly decreased(P＜0.05).Conclusion Repeated intratheal injection of ifenprodil can efficiently relieve spontaneous lifting behaviors,mechanical hyperalgia and thermal hyperalgia and decrease the expression of lumbar intumescentia NR2B in the mouse model of bone cancer pain.

ObjectiveTo investigate the effect of KN93,a CaMKII inhibitor,on the spinal NR2B expression in the bone cancer pain mouse and its underlying mechanism.MethodsThirty-six male C3IL/IIeJ mice were randomly divided into 3 groups:sham group( S,n =8 ),bone cancer pain group( BP,n =8 ) and KN93 group ( K,n=20).The mouse model of bone cancer pain was established by intra-femur inoculation of osteolytie NCTC 2472 cells in BP and K groups.At 14d post operation,mice in K group received intrathecal injection of 60nmol KN93/5μl in 20％ DMSO and mice in BP group and S group received 20％ DMSD 5μl respectively.Eight mice were selected randomly from each group at (1)d before inoculation,at 1 h before administration and at 1,2,4,24h after administration( T0-5 ) to be measured the paw withdrawal threshold(PWT) stimulated by von Frey filaments.Another 3 mice were sacrificed at the corresponding time point and the spinal cord L3 -5 were obtained for determination of NR2B expression by western blot.ResultsPWT was significantly decreased in group BP( (0.50 ± 0.11 ) g) and K( (0.52 ±0.10)g),except for group K at T3(P＞0.05),and NR2B cxpression up-regulated at T2-5 in BP( 1.78± 0.34),K groups ( ( 1.11 ± 0.14),(0.73 ± 0.03 ),( 1.11 ± 0.15 ),( 1.89 ± 0.32 ) ) compared with S group ( ( 1.78 ± 0.31 ) g,(0.33 ± 0.04),P ＜ 0.05 ).Compared with group BP,PWT was increased and NR2B expression down-regulated at T2-4 in group K.In contrast to T1,PWT at T2-4 upgraded in group K(P＜0.05 ),but no significant difference was observed in other groups (P＞ 0.05 ).ConclusionIntrathecal injection of KN93 can attenuate bone cancer pain in mice through inhibiting NR2B with a time-dependent manner and spinal CaMKII-NR2B pathway may participate in the development of bone cancer pain.

Objective:To identify clinical features,possible risk factors and treatment related to rituximab-associated interstitial pneumonia(RTX-IP). Methods:The clinicopathological characteristics,immune phenotype and treatment of six patients with diffuse large B-cell lymphoma(DLBCL)develped after receiving R-CDOP treatment were retrospectively analyzed. Results:Six patients had agranulocytosis or granulocytopenia within 1 week before RTX-IP diagnosis,and the median interval time was 3 courses of treatment.All six patients had double-expressor lymphoma(DEL)or triple-expressor lymphoma(TEL).Of the six patients,four had germinal-center B-cell-like lymphoma(GCB),and two had non-GCB.The expression of Ki-67 was＞70％,except for one patient with transformed lymphoma(TL).After treatment with methylprednisolone for about 1 week,all patients'chest CT showed inflammatory absorption.However,one patient developed pneumocystis carinii pneumonia during the process of hormone reduction,and recovered after 27 days of comprehensive treatment with hormones and anti-pneumocystosis therapy.All patients received CDOP regimen(a total of 8 courses)for the treatment of the primary disease,and the process was smooth. Conclusion:R-CDOP regimen may lead to a high incidence of RTX-IP in DLBCL patients(30.0％).The DLBCL patients with DEL or TEL,GCB subtype,TL and high Ki-67 expression were more liable to develop RTX-IP,and the recovery of agranulocytosis may be related to the pathogenesis of RTX-IP.High-resolution CT scan can provide valuable evidence for early diagnosis of RTX-IP.Metagenomic next-generation sequencing(mNGS)helps to distinguish IP from pathogen infections.High dose of glucocorticoids is effective treatment strategy.At the same time,it is necessary to strengthen the prevention and treatment of infection in the process of glucocorticoids application.

OBJECTIVE:To investigate the effects of different doses of tanshinone ⅡAon hemodynamics in patients underwent non-extracorporeal circulation coronary artery bypass grafting(NECCABG). METHODS:A total of 66 patients underwent selective NECCABG during Nov. 2016-Apr. 2017 were selected and divided into control group(33 cases)and observation group(33 cases) according to random number tablet. Both groups were given Tanshinone ⅡAsodium sulfonate injection with loading dose of 0.4 μg/kg for 10 min at the beginning of surgery. Control group was given Tanshinone ⅡAsodium sulfonate injection 0.2 μg/(kg·h) continuously till the end of surgery;observation group was given 0.4 μg/(kg·h)continuously till the end of surgery. HR,MAP, central venous pressure(CVP),mean pulmonary arterial pressure(MPAP),pulmonary capillary wedge pressure(PCWP),cardiac index(CI),systemic vascular resistance index(SVRI),pulmonary circulation resistance index(PVRI)and the occurrence of ADR were observed in 2 groups before anesthesia induction(T0),5 min after tracheal intubation(T1),at the moment of sternum cut(T2),at the end of anastomosis of anterior descending branch(T3),at the end of anastomosis of right coronary artery(T4),at the end of operation(T5). RESULTS:At T0,there was no statistical significance in HR,MAP,CVP,MPAP,PCWP, CI,SVRI or PVRI between 2 groups(P>0.05). At T1-T5, HR,MAP,CVP,MPAP,PCWP,SVRI and PVRI of control group were significantly higher than at T0,with statistical significance(P<0.05). There was no statistical significance in CI of control group among at T1-T5and with at T0;there was no statistical significance in HR,MAP,CVP,MPAP,PCWP,SVRI or PVRI of observation group between at T1-T5with at T0 (P>0.05). At T1-T5,CI of observation group was significantly higher than at T0and than control group;HR,MAP,CVP, MPAP,PCWP,SVRI and PVRI were significantly lower than control group,with statistical significance(P<0.05). No obvious ADR was found in 2 groups during medication. CONCLUSIONS:Tanshinone ⅡA0.4 μg/(kg·h)is helpful to keep hemodynamics stable and improve heart function in patients with NECCABG with good safety.

Objective:To investigate the clinical characteristics of primary thyroid lymphoma (PTL) and the differences in clinical manifestations and survival between the two main pathological subtypes of PTL.Methods:The clinical data of 52 patients with PTL diagnosed in Shanxi Province Cancer Hospital from January 2011 to January 2022 were retrospectively analyzed. The clinical characteristics and survival between the two main pathological subtypes [diffuse large B-cell lymphoma (DLBCL) and mucosa-associated lymphoid tissue lymphoma (MALT)] were compared.Results:Among 52 PTL patients, there were 12 males and 40 females, with a median age of 65 years old (34-83 years old). All patients presented with anterior cervical mass at the time of visit. MALT was diagnosed in 12 cases (23.1%). DLBCL was diagnosed in 37 cases (71.2%), of which 5 cases were double/triple expression lymphoma. B-cell lymphoma (unclassified) was diagnosed in 2 cases (3.8%). Follicular lymphoma (FL) was diagnosed in 1 case (1.9%). There was statistical difference in the proportion of patients with cervical lymph node enlargement between MALT and DLBCL patients [66.7% (8/12) vs. 94.6% (35/37), χ2 = 4.23, P < 0.05]. The 3-year OS rates of MALT and DLBCL patients were 90.9% and 73.9%, and the difference in OS between the two groups of patients was statistically significant ( χ2 = 5.11, P = 0.024). Conclusions:Pathological subtypes of PTL are related to the prognosis of patients.

Objective:To investigate the influencing factors of the prognosis of patients with diffuse large B-cell lymphoma (DLBCL).Methods:The clinical data of 431 DLBCL patients admitted to Shanxi Province Cancer Hospital from January 2013 to December 2020 were retrospectively analyzed. Univariate and multivariate time-dependent covariate Cox regression model were constructed. The relationship between the clinical characteristics and prognosis of patients was analyzed.Results:The age, tumor diameter, tumor width all met the proportion hazard hypothesis (correlation coefficients were 0.044, -0.015, and -0.680, respectively, all P > 0.05). The effects of disease grade, erythrocyte sedimentation rate (ESR) increased or not, and CD20 positive or not on survival time changed with time change. When the above indicators did not meet the proportional hazard hypothesis, they were time-dependent covariables (all P < 0.05). Time-dependent covariate Cox regression multivariate analysis showed that lactate dehydrogenase (LDH) increased or not ( χ2 = 13.78, P < 0.001), β 2 microglobulin (β 2-MG) increased or not ( χ2 = 5.36, P = 0.021), tumor diameter ( χ2 = 4.12, P = 0.042) and CD20 positive or not ( χ2 = 7.09, P = 0.008) and ESR increased or not ( χ2 = 5.46, P = 0.019) were independent influencing factors of the death of DLBCL patients. Conclusions:Patients with elevated LDH, increased β 2-MG, tumor diameter, increased ESR and CD20 positive have poor prognosis. Clinicians should take further treatment measures for these patients to reduce the mortality.