Repurposed benzydamine targeting CDK2 suppresses the growth of esophageal squamous cell carcinoma / 医学前沿

Esophageal squamous cell carcinoma (ESCC) is one of the leading causes of cancer death worldwide. It is urgent to develop new drugs to improve the prognosis of ESCC patients. Here, we found benzydamine, a locally acting non-steroidal anti-inflammatory drug, had potent cytotoxic effect on ESCC cells. Benzydamine could suppress ESCC proliferation in vivo and in vitro. In terms of mechanism, CDK2 was identified as a target of benzydamine by molecular docking, pull-down assay and in vitro kinase assay. Specifically, benzydamine inhibited the growth of ESCC cells by inhibiting CDK2 activity and affecting downstream phosphorylation of MCM2, c-Myc and Rb, resulting in cell cycle arrest. Our study illustrates that benzydamine inhibits the growth of ESCC cells by downregulating the CDK2 pathway.

Sensitive detection of microRNAs using polyadenine-mediated fluorescent spherical nucleic acids and a microfluidic electrokinetic signal amplification chip / 药物分析学报

The identification of tumor-related microRNAs(miRNAs)exhibits excellent promise for the early diag-nosis of cancer and other bioanalytical applications.Therefore,we developed a sensitive and efficient biosensor using polyadenine(polyA)-mediated fluorescent spherical nucleic acid(FSNA)for miRNA analysis based on strand displacement reactions on gold nanoparticle(AuNP)surfaces and electrokinetic signal amplification(ESA)on a microfluidic chip.In this FSNA,polyA-DNA biosensor was anchored on AuNP surfaces via intrinsic affinity between adenine and Au.The upright conformational polyA-DNA recognition block hybridized with 6-carboxyfluorescein-labeled reporter-DNA,resulting in fluores-cence quenching of FSNA probes induced by AuNP-based resonance energy transfer.Reporter DNA was replaced in the presence of target miRNA,leading to the recovery of reporter-DNA fluorescence.Sub-sequently,reporter-DNAs were accumulated and detected in the front of with Nafion membrane in the microchannel by ESA.Our method showed high selectivity and sensitivity with a limit of detection of 1.3 pM.This method could also be used to detect miRNA-21 in human serum and urine samples,with re-coveries of 104.0％-113.3％and 104.9％-108.0％,respectively.Furthermore,we constructed a chip with three parallel channels for the simultaneous detection of multiple tumor-related miRNAs(miRNA-21,miRNA-141,and miRNA-375),which increased the detection efficiency.Our universal method can be applied to other DNA/RNA analyses by altering recognition sequences.

Mental health literacy among residents in Ningbo City / 预防医学

Objective@#To investigate the mental health literacy levels among residents in Ningbo City, so as to provide the evidence for implementing the mental health service policy and targeted mental health education.@*Methods@#Permanent residents at ages of 12 years and older were recruited in Ningbo City using the multi-stage stratified random sampling method from August to December, 2020. Subjects' mental health literacy levels were evaluated using the national mental health literacy survey of China, and the gender-, age-, region- and educational level-specific levels of mental health literacy were investigated.@*Results@#A total of 6 654 questionnaires were allocated, and 6 392 valid questionnaires were recovered, with an effective recovery rate of 96.06%. The respondents included 2 967 men ( 46.42% ) and 3 425 women ( 53.58% ). The respondents were predominantly at ages of 18 to 44 years ( 2 705 residents, 40.19%) , lived in urban areas ( 3 823 residents, 59.81% ), and had an educational level of junior high school and below ( 3 195 residents, 49.98% ). The level of mental health literacy was 19.06%, and the score of mental health knowledge was ( 64.06±18.39 ) points. In the dimension of mental health skills, the scores of interpersonal support, cognitive reappraisal and transferred attention were ( 2.58±0.51 ), ( 2.45±0.57 ) and ( 2.82±0.49 ) points, and the score of mental health awareness was ( 3.63±0.47 ) points. A higher level of mental health literacy was seen in women than in men ( 20.64% vs. 17.22%, P<0.05 ) and in urban residents than in rural residents (20.95% vs. 16.23%, P<0.05 ). In addition, there were age- and educational level-specific levels of mental health literacy among residents ( P<0.05 ), and a higher level was seen in residents at ages of 18 to 45 years ( 28.98% ) and with a bachelor degree (40.89% ).@*Conclusions@#A high level of mental health literacy is found in residents in Ningbo City. Mental health promotion campaigns are recommended among men, rural elderly residents with a low educational level.

Comparison on Classification of Excess and Deficiency Syndromes of Colorectal Cancer Based on BP Neural Network and Decision Tree / 医学信息学杂志

The paper quantizes symptom data through binary coding,divides 8 syndromes summed up by experts into excess and de-ficiency syndromes,values and quantizes them,and establishes the model for classification of excess and deficiency syndromes of colorec-tal cancer based on BP neural network and decision tree.The result shows that BP neural network classification model is more applicablefor the handling of the nonlinear mapping relation compared with decision tree classification model.

Effect of intrathecal morphine and fentanyl on level of natural killer cells in hippocampus of rats with incisional pain / 中华麻醉学杂志

Objective To evaluate the effect of intrathecal morphine and fentanyl on the level of natural killer(NK)cells in the hippocampus of rats with incisional pain. Methods Ninety-six healthy male Sprague-Dawley rats, weighing 180-220 g, aged 6-8 weeks, in which intrathecal catheters were successfully implanted, were divided into 4 groups(n=24 each)using a random number table: control group(C group), incisional pain group(P group), intrathecal morphine-fentanyl group(MF group) and intrathecal morphine-fentanyl plus incisional pain group(MFP group). A 1-cm longitudinal incision was made through skin, fascia and muscle of the plantar aspect of the right hindpaw in sevoflurane-anesthe-tized rats. At 20 min before establishment of the incisional pain model, the mixture of morphine 5 μg∕kg and fentanyl 025 μg∕kg was intrathecally injected in MFP group, while the equal volume of normal saline was given instead in NS and P groups. Six rats were selected at 24 h before establishment of the model (T0, baseline)and at 1, 6, 24, 48 and 72 h after establishment of the model(T1-5), and the mechani-cal paw withdrawal threshold(MWT)and thermal paw withdrawal latency(TWL)were measured. Six rats from each group were selected at T0, T2, T3and T5, venous blood samples were taken from the pe-ripheral vein, the animals were then sacrificed immediately, and the hippocampi and spleen were quickly harvested. The levels of NK cells in peripheral blood, hippocampi and spleen were measured. Results Compared with group C, the MWT was significantly decreased, the TWL was shortened, the levels of NK cells in hippocampi were increased at T2-5, the levels of NK cells in the spleen were increased at T2and de-creased at T3,5, and the levels of NK cells in peripheral blood were decreased at T2,3in group P(P<005), and the MWT was significantly decreased, the TWL was shortened, the levels of NK cells in hipp-ocampi were increased at T2,5(P<005), no significant change was found in levels of NK cells in hipp-ocampi at T3(P>005), the levels of NK cells in the spleen were increased at T2and decreased at T5, the levels of NK cells in peripheral blood were decreased at T2,5(P<005), and no significant change was found in levels of NK cells in the spleen and peripheral blood at T3in group MFP(P>005). Compared with group P, the MWT was significantly increased, the TWL was prolonged, the levels of NK cells in hippocampi were decreased at T2-5, and the levels of NK cells in the spleen and peripheral blood were de-creased at T2-5and increased at T3in group MFP(P<005). Conclusion Intrathecal morphine and fenta-nyl can maintain the level of NK cells stable in the hippocampus, which may be helpful for maintenance of immune function of rats with incisional pain.

Application of MR-cine in evaluation on functional dyspepsia / 吉林大学学报(医学版)

Objective:To explore the value of MR-cine for assessment of the duodenum peristalsis in the patients with functional dyspepsia.Methods:25 patients with functional dyspepsia were selected according to the diagnostic criteria of RomeⅢ of functional gastrointestinal disorders (FGIDs)as case group and 25 cases of healthy volunteers who had been screened out in clinic were used as normal control group. After fasting for 8 h,supine position was performed.1.5TGEHDxMR was used to scan the coronal,axial and oblique coronal fast steady state precession (FIESTA)sequence of gastric and duodenal descending part.The images of 5 and 15 min after drinking 600 mL mannitol solution (concentration 2.5%)were collected and sent to MR AW4.4 workstation.The duodenal motility in the patients with functional dyspepsia was measured by recording the times of duodenum and measuring and calculating the percentage occlusion of duodenum contractions (PDC). Results:After drinking mannitol, the oblique coronal scan of all subj ects clearly displayed the anatomical structure and peristaltic wave of descending part of duodenum. After drinking 5 and 1 5 min of mannitol,the peristaltic wave frequencies in case group were lower than those in normal control group. The descending duodenum PDC of the patients in case group was significantly lower than that in normal control group (P0.05).Conclusion:MR-cine can evaluate preliminarly the duodenum peristalsis of the patients with functional dyspepsia. The diagnosis of FGIDs can be further studied by using the noninvasive MR-cine examination technique.

Effects of Propofol on Hepatoma Carcinoma HepG2 Cell Invasion / 中国药房

OBJECTIVE:To study the effects of propofol on invasion of hepatoma carcinoma HepG2 cell. METHODS:MTT method was used to detect the viability of HepG2 cells which were cultured with 0(negative control),1,3 and 10 μg/ml propofol for 48 h. The ability of cell invasion was detect by Tranaswell method. The phosphorylation level of nuclear factor-κB p65(NF-κB p65) and the expression of matrix metalloproteinase 2 (MMP-2),MMP-9,E-cadhherin and Snail were detected by Western blot method. RESULTS:Compared with negative control,1,3,10 μg/ml propofol inhibited the cell viability and invasion,down-regu-lated the expression of Snail and the phosphorylation level of NF-κB p65,and up-regulated the expression of E-cadherin (P<0.01). 3,10μg/ml propofol down-regulated the expression of MMP-2 and MMP-9(P<0.01). Above effects depended on drug con-centration(P<0.01). CONCLUSIONS:Propofol can suppress HepG2 invasion,which might be related to the inhibition of NF-κB/Snail signal pathway.

Sclerostin expression in periodontal ligaments during movement of orthodontic teeth in rats / 华西口腔医学杂志

<p><b>OBJECTIVE</b>This study aims to observe the expression of Sclerostin during movement of orthodontic teeth and determine the effect of this protein on remodeling of periodontal tissues.</p><p><b>METHODS</b>Twenty-four Wistar rats were chosen. Orthodontic forces were applied between the bilateral incisor and first molar to achieve mesial movement. Rats in each group were executed at different time points (0, 1, 3, 5, 7, 14 d). Morphology of periodontal tissue was observed by hematoxylin-eosin (HE) staining. The number of osteoclasts were observed by tartrate-resistant acid phosphatase (TRAP) staining. Sclerostin expression were observed by immunohistochemical staining.</p><p><b>RESULTS</b>HE staining revealed that the resorption of alveolar bone intensified with prolonged movement. Results of immunohistochemical and TRAP staining revealed that Sclerostin expression and number of osteoclasts were related to duration of movement of orthodontic tooth. After staining for 5 days, the number of osteoclasts and Sclerostin expression reached their peak and then began to decline. The numbers of osteoclasts and the expression level of Sclerostin were higher at the compressive side than those at the tensive side.</p><p><b>CONCLUSION</b>Sclerostin affected orthodontic tooth movement by inhibiting the Wnt signaling pathway and by indirectly or directly controlling bone morphogenetic protein.</p>

Surveillance of brucellosis and epidemic situation of the outbreak in Qingyang City in 2014 / 中华地方病学杂志

Objective By analyzing the monitoring data and the outbreak of brucellosis in Qingyang City in 2014,to provide a epidemiological evidence for prevention and control of the disease.Methods According to the requirements of Gansu Province Human Brucellosis Surveillance Program and Qingyang City Human Brucellosis Surveillance Program,we implemented epidemiological investigation in the high-risk group of brucellosis in 40townships under the jurisdiction of 8 countries in Qingyang.Detailed information on subject's exposure with livestock,clinical symnptoms and incidence were asked and recorded.Venous blood samples of 3-5 ml of suspected cases were collected.Then the rose bengal plate agglutination test (RBPT) was used to test the separated serum,and the standard tube agglutination test (SAT) was used to test the serum sample of positively infected person in the laboratory.Our test methods and results were in accordance with the implementation of Criteria for the Diagnosis of Brucellosis(WS 269-2007).For identified outbreaks,appropriate actions were taken based on regulations in the Brucellosis Prevention Manual.Results In 2014,we inspected 9 498 people in the whole city,implemented epidemiological investigation and collected 1 673 blood samples.Three hundred and thirty-eight samples were positive for RBPT.The infection rate was 20.20％ (338/1 673).Also there were 260 SAT positive samples (1 ∶ 100 ++above).The positive rate was 15.54％ (260/1 673).Combined with clinical symptoms,260 cases were confirmed (241cases were newly made and 19 cases were primary).The prevalence rate was 2.74％ (260/9 498).There were 12cases in total in outbreak points (2 cases in Huachi,3 cases in Huanxian,5 cases in Heshui,1 case in Qingcheng,and 1 case in Zhenyuan).Our epidemiological survey included 1 270 people,and we collected 308 blood samples.Fifty-one presented positive results for RBPT.The positive rate was 16.51％ (51/308);50 presented positive results for SAT.The positive rate was 16.23％ (50/308).Fifty cases were confirmed cases in the outbreak,all of which were new cases of this year,and the incidence was 3.94％ (50/1 270).Conclusions Brucellosis epidemic in Qingyang City has begun to rebound obviously,at the same time the outbreak points increased significantly.Both of which should capture the authorities' attention.The local government is supposed to undertake the due obligations to strengthen prevention and make efforts to control the spread of brucellosis.

Effects of propofol and sevoflurane on adriamycin chemotherapy-induced myocardial damage in rats / 中华麻醉学杂志

Objective To investigate the effects of propofol and sevoflurane on adriamycin chemotherapy-induced myocardial damage in rats.Methods Twenty-four healthy male Wistar rats, aged 3 months, weighing 212-270 g, were randomly divided into 4 groups (n =6 each) using a random number table: control group (group C) , adriamycin group (group ADM) , adriamycin-propofol group (group ADM-Pro) , and adriamycin-sevoflurane group (group ADM-Sevo).The equal volume of normal saline was injected intraperitoneally in group C.In group ADM, adriamycin 2.5 mg/kg was injected intraperitoneally once every other day for 6 times (11 days in total).In group ADM-Pro, adriamycin 2.5 mg/kg was injected intraperitoneally once every other day for 6 times, and at 3 days after the last administration of adriamycin, propofol anesthesia was performed as follows : the total amount of propofol injected intraperitoneally was 200 mg/kg, the initial dose was 100 mg/kg, and 1 h later the remaining amount was added, and the duration of anesthesia was about 2 h.In group ADM-Sevo, adriamycin 2.5 mg/kg was injected intraperitoneally once every other day for 6 times, and at 3 days after the last administration of adriamycin, sevoflurane anesthesia was performed as follows: 1.5％-3.0％ sevoflurane was inhaled for 2 h.After the end of anesthesia, blood samples were collected for determination of serum cardiac troponin (cTnI) concentrations.Myocardial specimens were collected for detection of caspase-3 expression by immuno-histochemistry.Results Compared with group C, the serum cTnI concentration was significantly increased, and the caspase-3 expression was up-regulated in ADM, ADM-Pro and ADM-Sevo groups (P＜ 0.05).Compared with group ADM, the serum cTnI concentration was significantly decreased, and the caspase-3 expression was down-regulated in ADM-Pro and ADM-Sevo groups (P＜0.05).There was no significant difference in the parameters mentioned above between group ADM-Pro and group ADM-Sevo (P＞0.05).Conclusion Propofol and sevoflurane both can mitigate adriamycin chemotherapy-induced myocardial damage in rats, without significant difference in the efficacy.

Application of controlled low central venous pressure combined with hepatic blood occlusion in hepatectomy / 中国肿瘤临床

Objective:To investigate the effect of controlled low central venous pressure (CLCVP) combined with hepatic blood occlusion on blood loss and hemodynamics in hepatectomy. Methods:Sixty hepatocellular carcinoma patients with American Society of Anesthesiologists (ASA) Ⅰ-Ⅱ undergoing hepatectomy were randomly divided into two groups. One was the group of hepatic blood occlusion (group I);the other was the group of CLCVP combined with hepatic blood occlusion (group II). During the parenchy-mal transection phase of surgery, 60.05). Likewise, no significant difference was noted in MAP and HR at different time points of the two groups (P>0.05). The CVP in groupⅡwas significantly lower than that in groupⅠat the beginning of and 20 min after the paren-chymal transection phase of the surgery. Conclusion:CLCVP combined with hepatic blood occlusion can reduce blood loss effectively during hepatectomy.

Effect of dexmedetomidine on serum TNF-αand IL-6 in neurosurgical patients during perioperation period and its clinical observation / 中国生化药物杂志

Objective To observe the effects of dexmedetomidine on serum TNF-αand IL-6 in neurosurgical patients during perioperative period. Methods 60 cases patients with intracranial aneurysm treated in our hospital in January 2014 to August 2014 were selected as the research objects, and they were randomly divided into two groups with 30 cases in each group.Before induction, the observation group adopted 1μg/kg dexmedetomidine with 10 min infusion, then adopted 0.4μg/( kg? h) infusion of dexmedetomidine, and control group received saline infusion.Serum TNF-αand IL-6 levels in two groups were compared at different time.Results After application of dexmedetomidine, the related indexes of hemodynamics in observation group, mean arterial pressure (MAP) and heart rate (HR) were more stable (P<0.05).Serum levels of TNF-αat the time of after induction, skin incision operation, 1h operation in observation group were (1.32 ±0.35), (1.42 ±0.54), (1.52 ±0.67), (1.57 ±0.63) μg/L, and were lower than those of control group, respectively (P<0.05).Serum levels of IL-6 at the time of after induction, skin incision operation, 1h operation in observation group were (69.64 ±13.54), (72.43 ±16.75), (76.32 ±16.93), (77.42 ±15.75) μg/L and were lower than those of control group, respectively (P<0.05).Conclusion The hemodynamics after application of dexmedetomidine in patients with neurosurgery operation is more stable, and the serum TNF-αand IL-6 are lower, so it contributes to the anti-inflammatory and has important clinical value.

Research progress of alcohol intervention in cerebral ischemia animal models / 中国比较医学杂志

Alcohol is closely related to the occurrence and prognosis of cerebral ischemia.Researches on the relationship between alcohol and cerebral ischemia using different animal models draw different conclusions.This paper summarizes the common alcohol intervention methods in making animal models of cerebral ischemia, and evaluates the advantages and disadvantages of these models to provide reference for the future research.

Efficacy Observation of Dexmedetomidine for Cerebral Protection in Brain Aneurysm Surgery / 中国药房

OBJECTIVE:To observe the cerebral protective effects of dexmedetomidine in brain aneurysm surgery. METH-ODS:48 patients with intracranial aneurysm were randomly divided into observation group and control group,with 24 cases in each group. Observation group was given dexmedetomidine 1 μg/kg,pump time 10 min,at rate of 0.5 μg/kg;control group re-ceived constant volume of normal saline. Hemodynamic changes,the levels of S100β protein and neuron specific enolase (NSE) were compared between 2 groups. RESULTS:The heart rate and mean arterial blood pressure were more stable in the observation group after medication,with statistical significance(P<0.05). The serum level of S100β protein at the end of operation(T5),6 h after operation(T6),12 h after operation(T7),24 h after operation(T8)were(1.52±0.35)μg/L,(1.69±0.33)μg/L,(1.72±0.42)μg/L,(2.08±0.57)μg/L;the serum level of NSE were(10.9±1.2)ng/L,(13.5±1.5)ng/L,(16.8±2.8)ng/L and(19.7±4.3)ng/L in observation group;those were all lower than in control group,with statistical significance(P<0.05). CONCLUSIONS:Dexme-detomidine for cerebral aneurysm operation is helpful for hemodynamics stability,and result in lower S100β protein and NSE. So it is important for cerebral protection.

Comparison of dezocine and fentanyl on immune status and serum levels of inflammatory cytokines of patients with breast cancer after surgery / 中国生化药物杂志

Objective To discuss comparison of different analgesic solution to the immune status and serum levels of inflammatory cytokines of the patients with breast cancer after surgery.Methods The patients of experimental group and control group were given Dizocine and fentanyl to analgesic respectively perioperative experimental.Then analysis and comparison the immune status and serum levels of the two groups.Results The T lymphocyte subsets ( The level of CD3 +、CD4 +and the ratio CD4 +/CD8 +) and the level fo NK cells of the exprimental group patients intraoperative and postoperative 1 d were significantly higer than the control group.The anti-inflammatory factor in the serum of the experimental group patients intraoperative and postoperative 1d was significantly higer than the control group.The proinflammatory factor in the serum of the experimental group patients intraoperative and postoperative 1 d was significantly lower than the control group.Conclusion Dizocine can significantly improve the serum inflammatory factors of the patients with brest cancer after surgery,and can adjust the patient’s immune status.

Effect of ischemic postconditioning on endoplasmic reticulum stress during cerebral ischemia/reperfusion in rats / 中华麻醉学杂志

Objective To evaluate the ischemic postconditioning on endoplasmic reticulum stress during cerebral ischemia/reperfusion (I/R) in rats.Methods Ninety adult male Sprague-Dawley rats,aged 350-450 g,were randomly divided into 3 groups (n =30 each) using a random number table:sham operation group (S group),I/R group,and ischemic postconditioning group (group P).Focal cerebral I/R was induced by electrocoagulation of left middle cerebral artery and 30 min occlusion of bilateral common carotid arteries followed by reperfusion.In group P,bilateral common carotid arteries were subjected to 3 cycles of 30 s reperfusion and 10 s ischemia at the beginning of reperfusion.At 24 h of reperfusion,neurological deficit was scored,and cerebral infarct size was detected by TTC staining.At 6,12 and 24 h of reperfusion,the expression of glucose-regulated protein 78 (GRP78),C/EBP homologous protein (CHOP) and caspase-12 in the ischemic area were measured (using immunohistochemistry).The neuronal apoptosis in the ischemic area was detected by TUNEL.Results Compared with S group,the neurological deficit score was significantly increased,cerebral infarct size was enlarged,the neuronal apoptosis was increased,and the expression of GRP78,CHOP and caspase-12 was up-regulated in I/R and P groups.The neurological deficit score was significantly lower,cerebral infarct size was smaller,the expression of GRP78 was higher at 12 and 24 h of reperfusion,the neuronal apoptosis was lower at 24 h of reperfusion,and the expression of CHOP and caspase-12 was lower in group P than in group I/R.Concluion Ischemic postconditioning can inhibit neuronal apoptosis mediated by endoplasmic reticulum stress during cerebral I/R,which dose not play a leading role in cerebral protection in rats.

Influence of diabetes mellitus on changes in plasma osmotic pressure during bowel preparation in patients undergoing radical resection for colon cancer / 中华麻醉学杂志

Objective To evaluate the influence of diabetes mellitus on changes in plasma osmotic pressure during bowel preparation in patients undergoing radical resection for colon cancer.Methods Sixty patients,of ASA physical status Ⅰ or Ⅱ,aged 40-60 yr,weighing 50-75 kg,scheduled for elective radical resection for colon cancer,were included in the study.Of the 60 patients,30 patients with type 2 diabetes mellitus served as test group (group DM),and 30 patients without diabetes mellitus served as control group (group C).Polyethylene glycol electrolyte powder was given orally for bowel preparation before surgery.In the early morning of the day on which preoperative preparation was performed (T1) and before opening venous channels after admission to the operating room (T2),venous blood samples were taken for determination of plasma colloid osmotic pressure (COP) and concentrations of plasma electrolytes (Na+,Cl-,K+) and blood glucose.Thirst was assessed using visual analogue scales at T1 and T2.Results Compared with the baseline value at T1,the plasma COP and degree of thirst were significantly increased at T2 in C and DM groups,blood glucose concentrations were decreased at T2 in group DM,and no significant changes were found in the plasma concentrations of electrolytes at T2 in both groups.Compared with group C,blood glucose concentrations were significantly increased,and no significant changes were found in the plasma concentrations of electrolytes at T1,2,no significant change was found in plasma COP and degree of thirst at T1,and the degree of thirst was decreased at T2,while the plasma COP was increased at T2 in group DM.Conclusion After bowel preparation in patients undergoing radical resection for colon cancer,although the thirsty sensation of the patients with diabetes mellitus is decreased,the plasma COP is obviously increased; thus infusion of appropriate crystalloid solution instead of colloid solution is required in case hyperosmolar coma develops.

Effect of neo-adjuvant chemotherapy on postoperative cognitive dysfunction in elderly patients after one-lung ventilation surgery / 中国肿瘤临床

Objective:We aimed to investigate the effect of neo-adjuvant chemotherapy on postoperative cognitive dysfunction (POCD) in elderly patients who underwent one-lung ventilation (OLV) surgery. Methods:A total of 90 esophageal carcinoma patients aged 60 years old or older were included. These patients were scheduled for esophagectomy, including two or three-field lymphadenec-tomy, and were randomly divided into two groups based on the American Society of Anesthesiologists status (Ⅰ or Ⅱ) and the Tu-mor-Node-Metastasis (TNM) classification stage (ⅡorⅢ), as follows:the neo-adjuvant chemotherapy group (Group N:n=45) that re-ceived preoperative neo-adjuvant chemotherapy;and the control group (Group C:n=45) that did not receive chemotherapy. The neuro-psychological test was performed 1 d before and 7 d after surgery to evaluate the changes in cognitive function. The incidence of POCD was also determined via the Z-value method in the two groups. Results:A total of 44 patients in Group N and 41 patients in Group C completed the neuropsychological tests. No statistical differences were observed in the demographics, TNM stage, and the intra-and post-operative clinical data between the groups. POCD was observed in 21 of the patients in Group N (47.7%) and 11 of the patients in Group C (26.8%), and the differences were significant (χ2=3.949, P=0.047). Conclusion:Neo-adjuvant chemotherapy can aggravate the impairment of cognitive function in the elderly patients undergoing OLV surgery and can significantly increase the incidence of POCD.

Comparison of three tracheal intubation techniques in thyroid tumor patients with a difficult airway: a randomized controlled trial

To investigate the effectiveness of the Shikani optical stylet [SOS] and Glide Scope video laryngoscope [GVL] for tracheal intubation of thyroid tumor patients with a difficult airway. One hundred and twenty thyroid tumor patients with a difficult airway, who were undergoing elective surgery requiring general anesthesia, were enrolled in the study. They were randomly allocated to 3 groups [n = 40 each] who underwent direct laryngoscopy [DL], SOS or GVL. The outcomes recorded were time to intubation, first-attempt success rate, mean artery pressure [MAP], heart rate [HR] and incidence of complications. The mean time to intubation in the SOS group [group S; 42.4 +/- 24.1 s] and the GLV group [group G; 29.8 +/- 22.3 s] was significantly less than that in the DL group [group D] [68.8 +/- 26.6 s]. The first-attempt success rate in group S [90.0%] and group G [97.5%] was significantly higher than that in group D [75.0%; all p < 0.05]. The HR and MAP at 1 min after intubation were lowest in group S [76.4 +/- 9.2 beats/min and 12.9 +/- 1.1 kPa], followed by group G [79.9 +/- 9.3 beats/min and 13.0 +/- 0.9 kPa] and then group D [90.4 +/- 8.1 beats/min and 16.6 +/- 1.2 kPa]. The difference was statistically significant [all p < 0.05]. The incidence of lip or mucosal trauma was lowest in group S, followed by group G and then group D. The SOS and the GLV had advantages over the DL in the management of thyroid tumor patients with a difficult airway in terms of a shorter time to intubation, a higher first-attempt success rate and a reduced incidence of complications. Thus, a rational choice of one of these techniques may be better for the perioperative safety of thyroid tumor patients with a difficult airway

Research progress on the effect of anesthesia on anthracycline car-diotoxicity / 中国肿瘤临床

Anthracycline-based antitumor drugs are one of the highly effective broad-spectrum anti-cancer drugs that are commonly used clinically. However, anthracyclines have the serious side effect of cumulative dose-related cardiotoxicity. Clinically, intake of myocardial protective drugs is one of the most important strategies for the safe use of anthracyclines in chemotherapy. Numerous cancer patients un-dergoing chemotherapy also require surgery, during which general anesthesia is commonly used. Various studies have shown that propofol and sevoflurane, the most commonly used general anesthetics, present a significant protective effect in myocardial ischemia-reperfusion damage. Therefore, for patients who have just undergone chemotherapy with anthracyclines, anthracycline-induced myocardial injury may occur at the acute or chronic phase of surgery. Consequently, if the effect of anesthetics on the cardiotoxicity of anthracyclines is similar to the protective effect of these drugs for myocardial ischemia-reperfusion damage, this protective effect on cardiotoxicity will have significant impact on the recovery of cardiopulmonary function of patients after surgery. Thus, further studies are needed to establish the effect of anesthetics on the cardiotoxicity of anthracyclines.