Correlation study between cerebral microbleeds and white matter lesions in patients with ischemic cerebrovascular disease / 中华行为医学与脑科学杂志

Objective To explore distribution characteristics and risk factors of cerebral microbleeds (CMBs),and the correlation between CMBs and white matter lesions (WML) in patients with ischemic cerebrovascular disease(ICVD).Methods 180 patients with ICVD in neurology department of Hebei General Hospital from February 2015 to January 2017 were recruited.Those patients were underwent brain magnetic resonance imaging (MRI),and magnetic susceptibility weighted imaging (SWI).Recorded the baseline data and risk factors of high blood pressure,diabetes,hyperlipidemia,and high homocysteine were recorded.Patients with CMBs were counted and graded to understand the characteristics of CMBs distribution.Logisitic regression analysis was used to analyze the influencing factors.ICVD patients were divided into CMBs group and non CMBs group.CMBs group was further divided into 4 groups according to the severity,which was divided into level 1-3.The correlation between CMBs influencing factors and classification was further studied.Then patients with ICVD were divided into WML group and non WML group.WML group scored each region with age-related white matter changes rating scale (ARWMCrs).The correlation between WML and CMBs classification was further studied.Results (1) The overall prevalence of CMBs in patients with ICVD was 61.7％ (111/180).The most common location of CMBs in patients with ICVD was the cortical and subcortical regions (80/111,72.1％),followed by the basal ganglia and thalamus regions (61/111,55.0％),and the infratentorial regions(38/111,34.2％).The difference between them were significant (x2 =32.061,P=0.000).In cortical and subcortical regions of CMBs,temporal lobe was the most common (61.3％).(2) Age(B=0.046,Or=1.047,95％CI =1.017～ 1.077,P=0.002) and the high homocysteine (B =1.458,Or=4.299,95％ CI =2.114 ～ 8.744,P＜0.001) were the risk factors for CMBs.(3) Four classification of CMBs was positively correlated with and WML total score (r=0.393,P=0.393).Conclusion The temporal lobe was the most common region for CMBs in patients with ICVD.Age and high homocysteine were risk factors for CMBs.With the increase of WML total score,severity of CMBs was also increased.

Mitochondrial mechanisms of antisense oligodeoxynucleotide Stat3 induced apoptosis in laryngeal carcinoma cell / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To investigate the changes of mitochondrion by transferring antisense oligodeoxynucleotide Stat3 into laryngeal carcinoma Hep-2 cell, for elucidating the mechanism of laryngeal carcinoma Hep-2 cell apoptosis, for developing more effective treatment for laryngeal cancer.@*METHOD@#The designed Stat3 ASODN was transferred into laryngeal carcinoma Hep-2 cell by lipofection. Mitochondrion membrane potential, VDAC and Cyt-c were detected for determining the changes of mitochondrion.@*RESULT@#MMP was fell, Cyt-c and VDAC were increased with the heighten concentration of ASODN.@*CONCLUSION@#Mitochondria approach play an important role in the apoptosis mechanism of human Hep-2 cell by Stat3. This research elucidated the regulating mechanism of Hep-2 cell proliferation by Stat3, provided a new research focus for clinical therapy.

Stat3 antisense oligodeoxynucleotide induces apoptosis in laryngeal carcinoma cells by regulating apoptosis-related factors / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To study the mechanism of apoptosis in laryngeal carcinoma cell induced by Stat3 antisense oligodeoxynucleotide (ASODN).@*METHOD@#The designed Stat3 ASODN was transferred into laryngeal carcinoma Hep-2 cell by lipofection. Expression of Bcl-2, Bax and C-Myc were detected by Western blot and PCR.@*RESULT@#Western blot and PCR results demonstrated that Stat3 ASODN could significantly increased the expression of Bax and decreased the expression of Bcl-2 and C-Myc when the concentration of antisense oligodeoxynucleotide were heightened.@*CONCLUSION@#Stat3 ASODN participate in apoptosis by enhancing the expression of Bax and reducing the expression of Bcl-2 and C-Myc.

Prevention and cure sinusitis complicated by endoscopic transnasal approach in surgical treatment of pituitary adenoma / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To recognize the causes, methods of prevention and cure of sinusitis complicated by endoscopic transnasal approach in surgical treatment of pituitary adenomas.@*METHOD@#The data of 187 patients who underwent surgical treatments of pituitary adenomas through endoscopic transnasal approach were collected, and the surgical complications were analyzed.@*RESULT@#Endoscopic transnasal transsphenoidal approach were used successfully in 187 cases, twelve cases (6.4%) were suffered from sinusitis complication after surgery. The most frequent sinusitis complication was sphenoiditis, 9 cases (4.8%) were suffered, 2 cases (1.1%) were suffered from ethmoidal sinusitis, 1 case (0.5%) was suffered from maxillary sinusitis. Ten cases were treated with correspond medication in clinic. Two cases were ineffective with expectant treatment, and cured by second endoscopic sinusitis operation at last.@*CONCLUSION@#Endoscopic transnasal transsphenoidal approach offered a simple and rapid access to the sella, and also, it is a safe, valuable and efficient procedure for removing pituitary adenomas. It was obviously that timely accurate diagnosis for the sinusitis complication and comprehensive perioperative management may lead to less incidence of postoperative sinusitis complication in surgical treatment of pituitary adenomas through endoscopic transnasal approach, increase the achievement rate and improve survival quality obviously.

Stat3 antisense oligodeoxynucleotide induces apoptosis in laryngeal carcinoma cells by regulating apoptosis-related factors / 临床耳鼻咽喉头颈外科杂志

Objective:To study the mechanism of apoptosis in laryngeal carcinoma cell induced by Stat3 antisense oligodeoxynucleotide (ASODN).Method:The designed Stat3 ASODN was transferred into laryngeal cacinoma Hep-2 cell by lipofection. Expression of Bcl-2, Bax and C-Myc were detected by Western blot and PCR.Result:Western blot and PCR results demonstrated that Stat3 ASODN could significantly increased the expression of Bax and decreased the expression of Bcl-2 and C-Myc when the concentration of antisense oligodeoxynucleotide were heightened.Conclusion:Stat3 ASODN participate in apoptosis by enhancing the expression of Bax and reducing the expression of Bcl-2 and C-Myc.

Apoptosis of laryngeal carcinoma cells induced by antisense oligodeoxynucleotides complementary Stat3 in vitro / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To study the effects of oligodeoxynucleotides complementary Stat3 on apoptosis in laryngeal carcinoma Hep-2 cell.@*METHOD@#Oligodeoxynucleotides complementary Stat3 was designed, which was transferred into laryngeal carcinoma Hep-2 cell by lipofection. Expression of Stat3 and p-Stat3 were detected by Western blot and PCR. MTT was used to observe the growth-inhibiting ratio. DNA ladder, AO/EB and FCM were used to observe the apoptosis of laryngeal carcinoma cell Hep-2 in vitro.@*RESULT@#Western blot and PCR results demonstrated that oligodeoxynucleotides complementary Stat3 could significantly inhibit the expression of Stat3 and p-Stat3 in Hep-2 cell. MTT results showed that it could significantly suppress the growth of Hep-2 cell. The DNA ladder, AO/EB and FCM results showed it could inhibit the expression of Stat3 and induce the apoptosis of Hep-2 cell in a concentration-dependent manner.@*CONCLUSION@#Oligodeoxynucleotides complementary Stat3 could induce the apoptosis and suppress cell proliferation in laryngeal carcinoma Hep-2 cell.