Advances in research on resistance to targeted therapy in BRAF-mutant thyroid cancer / 西安交通大学学报(医学版)

As the most common endocrine malignant tumor,the incidence rate of thyroid cancer is increasing year by year.However,the vast majority of subtypes have a good prognosis after traditional surgery,TSH suppression therapy and 131I treatment.With the progressive development of modern medicine,for a few thyroid cancers with poor effects of traditional treatment,molecular diagnosis and targeted therapy have further enriched the therapeutic means of thyroid cancer,in which BRAF mutation is widely present in thyroid cancer,but it often shows primary resistance or poor response to 131I therapy.The factors leading to primary or secondary resistance to targeted drugs with BRAF mutation may include genomic instability,expansion of resistant clones,occurrence of intrinsic mutations,or novel genetic and epigenetic alterations.In this article,we will review the research progress in targeted therapy resistance in BRAF-mutant thyroid cancer.

Relevant factors of type 2 diabetic patients with cerebral infarction / 中华临床营养杂志

Objective To investigate the relevant factors of type 2 diabetes mellitus (T2DM) with cerebral infarction (CI).Methods A total of 323 patients with T2DM from February 2012 to March 2017 in Inner Mongolia medical university affiliated hospital were included in this study.150 patients with T2DM and CI were considered as experiment group,173 cases of T2DM without CI were considered as control group.The clinical data of two groups were analyzed.Results The history of diabetes,smoking and hypertension were longer in experiment group than in control group (P＜ 0.05).The patients in experiment group had higher fasting blood glucose (FBG),glycosylated hemoglobin (HbA1c),total triglycerides (TG),total cholesterol (TC),low-density lipoprotein cholesterol (LDL-C),non-HDL-C,homocysteine (Hcy),fibrinogen (FIB),retinol binding protein 4 (RBP4) and lower HDL-C,apolipoprotein A1 (ApoA1) than the patients in control group (P＜ 0.05).Multiple-factor logistic regression analysis showed that long-term smoking,long history of hypertension,high TG,high LDL-C,high non-HDL-C,high Hcy,high RBP4,low HDL-C and low ApoA1 were risk factors for CI in patients with T2DM (P＜0.05).After adjusting common variables (diabetes history,hypertension history,smoking history,HbA1c,TG,TC),multiple-factor logistic regression analysis showed that LDL-C,non-HDL-C,Hcy,RBP4 were risk factors for CI in T2DM (P＜0.05).HDL-C and ApoA1 were protective factors for CI in T2DM (P＜0.05).Conclusion The risk factors for CI in patients with T2DM include long-term smoking,long hypertension history,high HbA1c,high TG,high LDL-C,high non-HDL-C,high Hcy,high RBP4,low HDL-C and low ApoA1.Patients should be advised to quit smoking,control blood glucose and blood pressure,and regulate blood lipid levels.

Effects of Ringer's solution with different concentrations of alcohol on biphasic compound action potentials of frog sciatic nerve trunk / 中国应用生理学杂志

OBJECTIVE@#To quantitatively investigate the effects of Ringer's solution with different concentrations of alcohol (1%～80%) on biphasic compound action potentials (AP) from frog sciatic nerve trunk, and their recoveries from alcohol effects.@*METHODS@#Individual segments of frog sciatic nerve trunk with a length of 6 to 8 cm were prepared. Ringer's solution with different concentrations of alcohol (0%, 1%, 2%, 4%, 8%, 16%, 32%, 48%, 64% and 80%) was applied onto the segment of the trunk between the stimulus and ground electrodes via an agent reservoir which was newly armed in a nerve trunk shielded chamber for 5 minutes. The nerve trunk was respectively electro-stimulated to generate the biphasic compound AP which was recorded using the experimental system of BL-420F. This was followed by 5 times washout plus 5 min administration with Ringer's solution before recovery recording of AP.@*RESULTS@#Compared to normal Ringer's solution, Ringer's solution with alcohol at ≤4% did not have dramatic impacts on the AP amplitude and conduction velocity, while Ringer's solution with alcohol at ≥8% there was significant decrease in these two parameters. Ringer's solution with alcohol at the conentrations of 16%, 32% and ≥48% could prevent a small proportion (30%), a large proportion (90%) and all (100%) of sciatic nerve trunks, respectively, from generating AP. Washout with normal Ringer's solution after alcohol application at the concentration of ≤32%, AP could totally recover to normal status. While alcohol at the concentration of 48%, 64% and 80%, the probabilities to regenerate APs were 90%, 40% and 0%, and the AP amplitudes were decreased to 60%, 36% and 0%, respectively. After washout, AP conduction velocity showed no difference with alcohol at the concentration of ≤8% when compared with that before washout, while it could not be recovered to normal under alcohol at ≥16%.@*CONCLUSION@#Ringer's solution with different concentrations of alcohol exerts different effects on biphasic compound AP amplitude and conduction velocity. Hopefully, our findings could be helpful for the alcoholic usage and its recovery from alcoholic damage.

α-Mangostin regulates the proliferation and apoptosis of osteoarthritis chondrocytes / 中成药

AIM To analyze the effects of α-mangostin on the proliferation and apoptosis of osteoarthritis (OA) chondrocytes.METHODS Human OA chondrocytes were isolated and then treated with 5,10 or 20 μmol/L α-mangostin.24,48 or 72 h after the treatment,the cell proliferation was measured by MTT assay,and the cell apoptosis was detected by flow cytometry.The expression check on MMP-1,MMP-3,MMP-13,PPARγ,PPARδ,PGC-lα and TNF-α was accomplished by Western blot.The contents of collagen-Ⅱ,PG,IL-1β and IL-6 were tested by ELISA.RESULTS α-Mangostin significantly induced cell proliferation and suppressed cell apoptosis,and it significantly increased the production of collagen-Ⅱ and PG,decreased the expressions of MMP-1,MMP-3 and MMP-13,induced the expressions of PPARγ,PPARδ and PGC-1α,and decreased the expression of TNF-α.Furthermore,α-mangostin significantly inhibited the production of IL-1β and IL-6.CONCLUSION α-Mangostin attenuates the destruction and degradation of cartilago articularis by inducing OA chondrocytes proliferation,inhibiting cell apoptosis and inflammation,and increasing expressions of PPARγand PPARδ.

Experimental systemic lupus erythematosus mouse model induced by pristane / 药物评价研究

Objective To establish the systemic lupus erythematosus (SLE) mouse model through pristaneip injection and validate the model comprehensively.Methods Female BALB/c mice of 6-8 weeks were randomly divided into two groups.Animals in model group were injected with 0.5 mL pristane by ip injection while in control group with 0.5 mL normal saline.Anti-systemic lupus erythematosus antibodies (anti-SLE) and anti-double strand DNA antibodies (anti-dsDNA) were checked before injection and monthly thereafter.Proteinuria was detected before injection and every month thereafter.All mice were bled to death 6 months after injection.Kidneys were excised to observe the histopathologic evidence of glomerulonephritis.Results The concentration of anti-dsDNA and anti-SLE antibody in sera was higher of model group than that of control group two months after pristane injection,and the concentration of antibody gradually increased within 6 months.At the sixth months,the protein concentration of urine in most model group mice was ++++.The histopathology and imunoflorescence of kidney sections indicated typical evidence of glomerulonephritis in model group.Conclusion The murine lupus model can be successfully established in female BALB/e mouse with a single ip injection of 0.5mL ofpristane.

Problems in Community-based Rehabilitation during the Period of 12th Five-year Plan in China / 中国康复理论与实践

The development of community-based rehabilitation (CBR) needs to improve to meet the change of environment during the period of 12th Five-year Plan. The problems of CBR development included 3 major contradictions:administration of CBR and marketiza-tion of medical services;professionals demand of CBR and their professional development;and the demand of CBR and capacity of servic-es. It is necessary to establish some market-oriented CBR project, pay attention to professional development, and promote the capacity of the community rehabilitation agencies.

The analysis and discussion of early cardiac arrhythmias in infants after open heart surgery with congenital heart diseases / 临床外科杂志

Objective To discuss the types,pathogenesis and treatment of early cardiac arrhyth-mias in infants after open heart surgery with congenital heart diseases. Methods 992 infants after open heart surgeries were divided into control group and arrhythmia group. Another junctionalectopictachycardia ( JET)group was separated from arrhythmia group. Various preoperative and postoperative data were com-pared. Results 197 infants suffered from cardiac arrhythmia within 3 days right after open heart surger-ies. After exactly the same surgery procedures,JET group was significantly different with control group in aortic cross-clamp time,cardiopulmonary bypass time and stay in CICU(p<0. 05). As for time of ventila-tion,no significant difference was found between the two groups. Conclusion Early diagnosis and treat-ment of cardiac arrhythmia can not only improve the success rate of open heart surgery,but also promote early recovery.

Problems in Community-based Rehabilitation during the Period of 12th Five-year Plan in China / 中国康复理论与实践

@#The development of community-based rehabilitation (CBR) needs to improve to meet the change of environment during the period of 12th Five-year Plan. The problems of CBR development included 3 major contradictions: administration of CBR and marketization of medical services; professionals demand of CBR and their professional development; and the demand of CBR and capacity of services. It is necessary to establish some market-oriented CBR project, pay attention to professional development, and promote the capacity of the community rehabilitation agencies.

Expression of T-helper 17 cells and signal transducers in patients with psoriasis vulgaris of blood-heat syndrome and blood-stasis syndrome / 中国结合医学杂志

<p><b>OBJECTIVE</b>To investigate the levels of cytokines related to T-helper (Th) 17 cells in serum and signal transducers in the psoriatic lesions of patients with psoriasis vulgaris of blood-heat syndrome (BHS) and blood-stasis syndrome (BSS).</p><p><b>METHODS</b>Sixty patients with psoriasis vulgaris were divided into the BHS and BSS groups according to the syndrome differentiation of Chinese medicine (CM). Ten healthy subjects were considered as the control group. Cytokine levels of interleukin (IL)-17, IL-23 and IL-6 in serum were determined by enzyme-linked immunosorbent assay. Expression levels of signal transducer and activator of transcription 3 (STAT3), p38-mitogen-activated protein kinase (MAPK) and STAT6 in the psoriatic lesions were determined using immunohistochemistry (IHC), Western blot, and real-time quantitative reverse transcription polymerase chain reaction, respectively.</p><p><b>RESULTS</b>Production of IL-17, IL-23 and IL-6 in the BHS group and BSS group were significantly increased compared with those in the control group (P<0.05). Levels of IL-17 and IL-23 in the BHS group were higher than those in the BSS group (P<0.05). Compared with the control group, IHC positive expressions and protein expressions of STAT3 and p38-MAPK, and the STAT3 mRNA expressions in the BHS and BSS groups were significantly higher (P<0.05 or P<0.01). The protein expression of STAT3 in the BHS group was significantly higher than that in the BSS group (P<0.05).</p><p><b>CONCLUSIONS</b>Cytokines in serum and signal transducers in the psoriatic lesions alter with various CM syndromes of psoriasis. The results provide scientific basis for the treatment based on syndrome differentiation of CM in treating psoriasis vulgaris.</p>

association of XPG and MMS19L polymorphisms response to chemotherapy in osteosarcoma

Objective: To assess the role of XPG, XPC, CCNH and MMS19L polymorphisms response to chemotherapy in osteosarcoma, and the clinical outcome of osteosarcoma

Methods: One hundred and sixty eight osteosarcoma patients who were histologically confirmed were enrolled in our study between January 2007 and March 2009. Genotyping of XPG, XPC, CCNH and MMS19L was performed in a 384-well plate format on the MassARRAY[registered] platform

Results: Individuals with rs2296147 TT genotype showed a better response as compared with CC genotype, with the OR [95% CI] of 3.89[1.49-10.95]. Those carrying rs29001322 TT genotype presented better response to chemotherapy, and the OR [95% CI] was as high as 12.25[2.63-121.84]. Patients carrying TT genotype of XPG rs2296147 and MMS19L rs29001322 showed a significantly longer overall survival than CC genotype, they had 0.37 and 0.31-fold risk of death when compared with wide-type of this gene

Conclusions: XPG rs2296147 and MMS19L rs29001322 are correlated with response to chemotherapy and prognosis of osteosarcoma. Our findings would provide important evidence for prognostic and therapeutic implications in osteosarcoma

Twenty-year experience in the diagnosis and treatment of hepatic trauma / 国际外科学杂志

Objective To summarize the experience in the diagnosis and treatment of hepatic trauma. Methods The clinical data of 260 patients with hepatic trauma admitted from January 1988 to December 2007 were retrospectively reviewed with regard to degree of trauma, treatment methods, therapeutical effects, complications and SO on. Results One hundred and fifty-three eases were treated by operative management,1 07 cases by nonoperative management.236 cases were cured,24 cases died,and the case fatality rate was 10.2%.There were no death among 139 patients with hepatic trauma grades Ⅰ～Ⅱ,22 death among 119 grades Ⅲ～Ⅴ patients, all death of 2 in grade VI, which demonstrated the correlation between death and hepatic trauma grade was statistically significant. Complications appeared in 82 eases, mainly including Secondary hemorrhage, abdominal infection and so on. Conclusions Nonoperative management is suitable for hepatic trauma with stable hemodynamics. Operative management is rapidly selected when the hemodynamics aren't stable. The cooperation of many specialities can enlarge the application of nonoperative management and decrease complications.

Study on bulblet induction of Fritillaria anhuiensis in vitro / 中国中药杂志

<p><b>OBJECTIVE</b>To study the optimal condition for bulb induction of Fritillaria anhuiensis in vitro.</p><p><b>METHOD</b>Effects of sucrose, salicylic acid, active carbon and 5 degrees C pre-incubation on bulb formation in vitro were investigated by adopting the number of bulb and fresh weight as indexes.</p><p><b>RESULT</b>The number of bulb and fresh weight in medium added with 50 g x L(-1) sucrose were significantly higher than those with other treatments. The medium with different concentrations of salicylic acid showed no significant promotion on callus differentiation. However, 5 g x L(-1) active carbon (AC) treatment was better than other treatments. Meanwhile, a large number of plantlets formed after 5 degrees C pre-incubation for 30-40 days was suitable for bulb formation and growth.</p><p><b>CONCLUSION</b>Bulblet formation was optimal in MS + KT 2 mg x L(-1) + NAA 2 mg x L(-1) + 50 g x L(-1) sucrose +5 g x L(-1) AC after callus pre-incucation at 5 degrees 1 for 30-40 days.</p>

Integrative medicinal therapy on herpes zoster in middle and old aged patients / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To study the therapeutic effect of integrative medicinal therapy with Qinzhu Liangxue Mixture (QLM) in combined with valaciclovir on herpes zoster (HZ) in middle and old aged patients.</p><p><b>METHODS</b>Ninety-seven HZ patients were randomly assigned to three groups and treated respectively with QLM alone (A), valaciclovir alone (B) and QLM plus valaciclovir (C). Times for stopping newly appeared blisters, scabbing relieving pain, and curing, as well as incidence rate of postherpetic neuralgia (PHN) after treatment were evaluated. Patients' symptoms and signs were scored before and after treatment.</p><p><b>RESULTS</b>Time for appeaed newly blister and scabbing was shorter in Group B than in Group A; time for relieving pain and curing was shorter in Group C than in Group A; and the PHN incidence rate in Group C was the lowest.</p><p><b>CONCLUSION</b>Valaciclovir can control the skin rash of HZ with quicker initiating time, and QLM can effectively relieve pain, the combined use with the two drugs can decrease the incidence rate of PHN availably.</p>

Expression of melanoma antigen gene in urinary transitional cell carcinomas / 中华外科杂志

<p><b>OBJECTIVE</b>To evaluate the significance of melanoma antigen (MAGE) gene expression in bladder transitional cell carcinoma (TCC).</p><p><b>METHODS</b>MAGE-A1, A2, A3, A4 mRNA expression was detected by reverse transcription polymerase chain reaction (RT-PCR) in 3 clusters bladder TCC cells and 20 samples of bladder TCC patients (T(1) 7 samples, T(2) 5 samples, T(3) 6 samples, T(4) 2 samples, G(1) 1 samples, G(2) 11 samples, G(3) 8 samples). MAGE-A4 protein was detected by immunohistochemistry in 105 samples of bladder TCC patients (T(1) 35 samples, T(2) 12 samples, T(3) 26 samples, T(4) 13 samples, G(1) 13 samples, G(2) 44 samples, G(3) 48 samples).</p><p><b>RESULTS</b>Three clusters bladder TCC cells had MAGE gene mRNA expression. In detection of MAGE mRNA of 20 samples of bladder TCC patients, 12 samples (60%) expressed MAGE-A1, 16 samples (80%) expressed MAGE-A2, 11 samples (55%) expressed MAGE-A3, 18 samples (90%) expressed MAGE-A4, 8 samples (40%) expressed all of MAGE-A1--A4. In 105 bladder TCC samples, 53 samples (50%) expressed MAGE-A4 protein. Strong expression (++ or +++) was significant higher in higher grade (13 samples/48 samples) or stage (14 samples/51 samples) than in lower grade (2 samples/57 samples) or stage (0 samples/35 samples).</p><p><b>CONCLUSION</b>MAGE gene highly expresses in bladder TCC. Bladder TCC of high grade or high stage has higher MAGE-A4 protein strong expression.</p>

Expression of SSX2 gene in human urologic neoplasms / 中华外科杂志

<p><b>OBJECTIVE</b>To investigate the expression of SSX(2)gene in human renal cell carcinoma and urinary transitional cell carcinoma.</p><p><b>METHODS</b>Reverse-transcription polymerase chain reaction (RT-PCR) was used for detecting SSX(2) gene in the specimens from renal cell carcinoma (n = 26), urinary transitional cell carcinoma (n = 27) and in 15 specimens taken from the tumor surrounding tissues.</p><p><b>RESULTS</b>Positive expression of SSX(2) gene at mRNA was detected in 69% renal cell carcinomas (18/26), in 81% urinary transitional cell carcinomas (22/27). The mRNA of SSX(2) was not detected in the 15 specimens from tumor surrounding tissues.</p><p><b>CONCLUSION</b>The SSX(2) gene is highly expressed in human renal cell carcinoma and urinary transitional cell carcinoma.</p>

Changes of Cytokines Measurement in Serum and Cerebrospinal Fluid in Asphyxia Ne onates and Its Relationship with Prognostic / 实用儿科临床杂志

Objective To study the dynamic changes of cytokines including tumor necrosis factor-alpha (TNF-?),interleukin-6 (IL-6),IL-8 in serum and cerebrospinal fluid (CSF) of asphyxia neonates,and to analyze the relationship between cytokines levels and severity of brain damage and neurological outcome. Methods The concentrations of TNF-?,IL-6,IL-8 in serum and CSF were measured by radioimmunoassay in 63 asphyxia neonates. Neurological development was evaluated at 12 months by children′s developmental scale of china.Results The serum concentrations of TNF-?, IL-6,IL-8 were significantly higher in asphyxiated neonates than those in the controls,and they were correlated with the degree of encephalopathy. The level of serum TNF-? was hig-(hest) at the first day and IL-6 was highest at the third day. There was no marked dynamic changes within 5 days in serum IL-8 level. The concentrations of TNF-?,IL-8 in CSF were higher at the first and the third day.The dynamic changes of IL-6 in CSF were similar in serum and they were positively correlated. The serum concentration of IL-6 in severe brain injury group was much higher than those of normal and mild group.The CSF concentration of IL-6 in severe brain injury group was much higher than that of normal group. The CSF concentration of IL-8 in severe brain injury group was much higher than those of the normal and mild group. Conclusions The concentrations of TNF-?,IL-6 and IL-8 are increased both in serum and CSF in asphyxiated neonates which are correlated with severity of hypoxic-ischemic encephalopathy. Cytokine-mediated inflammatory reactions may participate in the mechanism of hypoxic-ischemic brain injury after asphyxiaion.The concentration of IL-6 in serum and IL-6, IL-8 in CSF are correlated with the neurological outcome.

Study on Mechanism of Hyperoxia Through Mechanical Ventilation Induced Lung Injury in Newborn Rabbit / 实用儿科临床杂志

Objective To explore the effect of hyperoxia through mechanical ventilation induced lung injury(VILI) in newborn rabbit.Methods One hundred newborn rabbits aged 1-5 days were randomly divided into 4 groups: with 900 mL/L O2 and mechanical ventilation(MV),group A received high peak inspiratory pressure(HPIP),group B received moderate peak inspiratory pressure(MPIP),group C received low peak inspiratory pressure(LPIP),and group D with no mechanical ventilation with room air.There were 30 rabbits in group A,B,C,10 rabbits in D group.All rabbits were killed at 1,3,6 h after trial respectively.Wet-to-dry weight ratio(W/D) of left lung,and white blood cell(WBC)counts in broncho alveolar lavage fluid(BALF) were measured.The changes of lung histopathology were assessed by hematoxylin-eosin(HE) staining and observed under light microscope.Results Compared with group B and C,the group A demonstrated more pulmonary hemorrhage and pulmonary bullae formation,and the WBC and neutrophils counts in BALF increased and the W/D was higher compared with group B and group C.Meanwhile,alveolar epithelial cellⅡ(AECⅡ) hyperplasy transformed to AECⅠ.In group C,AECⅡswelled and lung tissue edema showed obviously,after 6 hours collagen fibers hyperplasia appeared.Part pulmonary atelectasis was obvious in group C.Conclusions HPIP ventilation can increase lung injury induced by hyperoxia in newborn rabbits,but has minimal effects on MPIP and LPIP ventilation.Pulmonary histopathologic changes participate in the newborn rabbit machine ventilation induced lung injury.