目的:分析Sternberg管未闭的病因、临床特点,并指导临床诊断及治疗。方法:收集近1年本医疗组治疗Sternberg管未闭患者的临床资料,并检索国内外数据库收集相关病例进行回顾性分析。结果:2例病例均有明确Sternberg管未闭伴脑膜脑膨出的影...目的:分析Sternberg管未闭的病因、临床特点,并指导临床诊断及治疗。方法:收集近1年本医疗组治疗Sternberg管未闭患者的临床资料,并检索国内外数据库收集相关病例进行回顾性分析。结果:2例病例均有明确Sternberg管未闭伴脑膜脑膨出的影像学特征,经过手术治疗后未见明显脑脊液漏表现。文献检索共得相关研究22篇,其中病例为51例,以自发性脑脊液鼻漏为主要症状,均有明确蝶窦骨质缺陷,手术治疗预后良好。结论:Sternberg管人群中发病率低,主要引起不明原因的脑脊液鼻漏。其临床诊断困难,但手术可治愈,预后好,复发率低。Objective: To analyze the etiology and clinical characteristics of patent Sternberg’s Canal, and to guide clinical diagnosis and treatment. Method: We collect clinical data of patients with patent Sternberg’s Canal treated in our medical group in recent years and retrieve relevant cases from Chinese and foreign databases for retrospective analysis. Result: Both two cases had explicit imaging features of patent Sternberg’s Canal along with meningoencephalocele. No obvious cerebrospinal fluid leakage was observed after surgical treatment. A total of 22 relevant studies were obtained through literature search, including 51 cases, with spontaneous cerebrospinal fluid rhinorrhea as the main symptom. All of them had clear sphenoid sinus bone defects and had good prognosis after taking surgical treatment. Conclusion: In epidemiology, the incidence rate in Sternberg’s Canal is low, which mainly causes cerebrospinal fluid rhinorrhea of unknown causes. It is difficult to make clinical diagnosis, but it can be cured by surgery, with good prognosis and low recurrence rate.展开更多
Spontaneous cerebrospinal fluid rhinorrhoea with encephalocele restricted to the sphenoid sinus is rare clinical finding. As of today, only 17 cases encephalocele protruding through the Sternberg’s canal and extendin...Spontaneous cerebrospinal fluid rhinorrhoea with encephalocele restricted to the sphenoid sinus is rare clinical finding. As of today, only 17 cases encephalocele protruding through the Sternberg’s canal and extending into the lateral recess of sphenoid sinus, have been described in literature. Patients presenting with this special clinical entity usually do not have any history of trauma, tumour or iatrogenic injury. Thus the lesions are considered to originate from a congenital bony defect in the lateral wall of the sphenoid sinus, first described by Sternberg in 1888 as the lateral craniopharyngeal canal (Sternberg’s canal). In our experience each patient of spontaneous CSF rhinorrhea should have suspicion of intrasphenoid encephalocele though cribriform plate is a common site. Endoscopic tranasnasal approach is one of the best modalities for such cases.展开更多
Callipterid is an important and highly heterogeneous group of fossil plants in the Permian continental strata of the northern hemisphere, in which Callipteris conferta(Sternberg)Brongniart is the most famous represent...Callipterid is an important and highly heterogeneous group of fossil plants in the Permian continental strata of the northern hemisphere, in which Callipteris conferta(Sternberg)Brongniart is the most famous representative because its first appearance in the strata was considered as an index fossil for the beginning of the Permian terrestrial depos-展开更多
OBJECTIVE: To investigate the characteristics of Hodgkin/Reed-Stemberg (H/R-S) cells found in patients with various types of Hodgkin's disease (HD). METHODS: H/R-S cells were micropicked from frozen sections of ti...OBJECTIVE: To investigate the characteristics of Hodgkin/Reed-Stemberg (H/R-S) cells found in patients with various types of Hodgkin's disease (HD). METHODS: H/R-S cells were micropicked from frozen sections of tissues affected by HD. The DNA from these cells was amplified by polymerase chain reaction (PCR) using immunoglobulin heavy chain gene FR III a/JH primers and light chain gene family-specific primers. RESULTS: A total of 52/135 (35.8%) isolated cells showed the specific products in the reactions. IgH and V kappa 4 rearrangements were repeatedly found in many cells from a lymphocyte predominance type sample; repeated V kappa 4 and individual IgH/V kappa 2,4 rearrangements and individual IgH, V lambda 3/ V kappa 4 rearrangements were found in two different cases of the nodular sclerosis type; repeated IgH/ V lambda 3 and individual V lambda 2,4 rearrangements, repeated V kappa 2,4 rearrangements, repeated V kappa 4 and individual IgH/ V kappa 3 rearrangements, repeated IgH and individual V kappa 3/ V lambda 4 rearrangements were detected in 3 cases of the mixed cellularity type. Repeated and individual IgH rearrangements were found in other 2 cases. CONCLUSION: The H/R-S cells isolated from the lymphocyte predominance subtypes of HD have IgH and V lambda 4 gene rearrangements. This suggests that the lymphocyte predominance type is a proliferation of neoplastic B cells. The cells isolated from the mixed cellularity and nodular sclerosis types derive from B lineage cells at various stages of differentiation because of the presence of their IgH, kappa and/or lambda gene rearrangements. To our knowledge, this is the first time that the lambda gene rearrangement was detected in H/R-S cells.展开更多
1引言1988年,罗伯特·斯腾伯格（R.J.Sternberg）与迈克尔·巴恩斯（M.Barnes）共同编写了Psychology of Love的第一版,由耶鲁大学出版社发行。进入21世纪以后,斯腾伯格与凯琳·斯腾伯格（Karin Sternberg）着手编写第二版...1引言1988年,罗伯特·斯腾伯格（R.J.Sternberg）与迈克尔·巴恩斯（M.Barnes）共同编写了Psychology of Love的第一版,由耶鲁大学出版社发行。进入21世纪以后,斯腾伯格与凯琳·斯腾伯格（Karin Sternberg）着手编写第二版的The New Psychology of Love,并于2006年正式出版。李朝旭博士主译的中文版《爱情心理学（最新版）》,由世界图书出版公司2010年5月出版之后,已经先后印刷了5次,展开更多
All results on problems of iterated roots, as we have known, almost only deal with the differentiability at a fixed point, but for two fixed points (even for two fixed end points) we have no conclusions. In this paper...All results on problems of iterated roots, as we have known, almost only deal with the differentiability at a fixed point, but for two fixed points (even for two fixed end points) we have no conclusions. In this paper we discuss the self-homeomorphism on a closed interval with only two fixed points at the two end points of this interval. An exciting result on the variability of the local uniqueness under a small local perturbation is given, and further we see that the iterated roots which are differentiable at both end points of the interval are extremely little.展开更多
文摘目的:分析Sternberg管未闭的病因、临床特点,并指导临床诊断及治疗。方法:收集近1年本医疗组治疗Sternberg管未闭患者的临床资料,并检索国内外数据库收集相关病例进行回顾性分析。结果:2例病例均有明确Sternberg管未闭伴脑膜脑膨出的影像学特征,经过手术治疗后未见明显脑脊液漏表现。文献检索共得相关研究22篇,其中病例为51例,以自发性脑脊液鼻漏为主要症状,均有明确蝶窦骨质缺陷,手术治疗预后良好。结论:Sternberg管人群中发病率低,主要引起不明原因的脑脊液鼻漏。其临床诊断困难,但手术可治愈,预后好,复发率低。Objective: To analyze the etiology and clinical characteristics of patent Sternberg’s Canal, and to guide clinical diagnosis and treatment. Method: We collect clinical data of patients with patent Sternberg’s Canal treated in our medical group in recent years and retrieve relevant cases from Chinese and foreign databases for retrospective analysis. Result: Both two cases had explicit imaging features of patent Sternberg’s Canal along with meningoencephalocele. No obvious cerebrospinal fluid leakage was observed after surgical treatment. A total of 22 relevant studies were obtained through literature search, including 51 cases, with spontaneous cerebrospinal fluid rhinorrhea as the main symptom. All of them had clear sphenoid sinus bone defects and had good prognosis after taking surgical treatment. Conclusion: In epidemiology, the incidence rate in Sternberg’s Canal is low, which mainly causes cerebrospinal fluid rhinorrhea of unknown causes. It is difficult to make clinical diagnosis, but it can be cured by surgery, with good prognosis and low recurrence rate.
文摘Spontaneous cerebrospinal fluid rhinorrhoea with encephalocele restricted to the sphenoid sinus is rare clinical finding. As of today, only 17 cases encephalocele protruding through the Sternberg’s canal and extending into the lateral recess of sphenoid sinus, have been described in literature. Patients presenting with this special clinical entity usually do not have any history of trauma, tumour or iatrogenic injury. Thus the lesions are considered to originate from a congenital bony defect in the lateral wall of the sphenoid sinus, first described by Sternberg in 1888 as the lateral craniopharyngeal canal (Sternberg’s canal). In our experience each patient of spontaneous CSF rhinorrhea should have suspicion of intrasphenoid encephalocele though cribriform plate is a common site. Endoscopic tranasnasal approach is one of the best modalities for such cases.
文摘Callipterid is an important and highly heterogeneous group of fossil plants in the Permian continental strata of the northern hemisphere, in which Callipteris conferta(Sternberg)Brongniart is the most famous representative because its first appearance in the strata was considered as an index fossil for the beginning of the Permian terrestrial depos-
文摘OBJECTIVE: To investigate the characteristics of Hodgkin/Reed-Stemberg (H/R-S) cells found in patients with various types of Hodgkin's disease (HD). METHODS: H/R-S cells were micropicked from frozen sections of tissues affected by HD. The DNA from these cells was amplified by polymerase chain reaction (PCR) using immunoglobulin heavy chain gene FR III a/JH primers and light chain gene family-specific primers. RESULTS: A total of 52/135 (35.8%) isolated cells showed the specific products in the reactions. IgH and V kappa 4 rearrangements were repeatedly found in many cells from a lymphocyte predominance type sample; repeated V kappa 4 and individual IgH/V kappa 2,4 rearrangements and individual IgH, V lambda 3/ V kappa 4 rearrangements were found in two different cases of the nodular sclerosis type; repeated IgH/ V lambda 3 and individual V lambda 2,4 rearrangements, repeated V kappa 2,4 rearrangements, repeated V kappa 4 and individual IgH/ V kappa 3 rearrangements, repeated IgH and individual V kappa 3/ V lambda 4 rearrangements were detected in 3 cases of the mixed cellularity type. Repeated and individual IgH rearrangements were found in other 2 cases. CONCLUSION: The H/R-S cells isolated from the lymphocyte predominance subtypes of HD have IgH and V lambda 4 gene rearrangements. This suggests that the lymphocyte predominance type is a proliferation of neoplastic B cells. The cells isolated from the mixed cellularity and nodular sclerosis types derive from B lineage cells at various stages of differentiation because of the presence of their IgH, kappa and/or lambda gene rearrangements. To our knowledge, this is the first time that the lambda gene rearrangement was detected in H/R-S cells.
文摘1引言1988年,罗伯特·斯腾伯格（R.J.Sternberg）与迈克尔·巴恩斯（M.Barnes）共同编写了Psychology of Love的第一版,由耶鲁大学出版社发行。进入21世纪以后,斯腾伯格与凯琳·斯腾伯格（Karin Sternberg）着手编写第二版的The New Psychology of Love,并于2006年正式出版。李朝旭博士主译的中文版《爱情心理学（最新版）》,由世界图书出版公司2010年5月出版之后,已经先后印刷了5次,
文摘All results on problems of iterated roots, as we have known, almost only deal with the differentiability at a fixed point, but for two fixed points (even for two fixed end points) we have no conclusions. In this paper we discuss the self-homeomorphism on a closed interval with only two fixed points at the two end points of this interval. An exciting result on the variability of the local uniqueness under a small local perturbation is given, and further we see that the iterated roots which are differentiable at both end points of the interval are extremely little.
