Objective:To investigate the clinical value of immunohistochemistry(IHC)detection in the pathological diagnosis of breast cancer.Methods:Eighty breast cancer patients admitted to Baoding No.1 Central Hospital from Jun...Objective:To investigate the clinical value of immunohistochemistry(IHC)detection in the pathological diagnosis of breast cancer.Methods:Eighty breast cancer patients admitted to Baoding No.1 Central Hospital from June 2022 to June 2023 were selected as study subjects.The samples were divided into a positive group(40 cases)and a negative group(40 cases)according to ER and PR test results.Immunohistochemistry was performed on all patients to compare the differences between the two groups in C-erbB-2 positive expression and axillary lymph node metastasis.Results:The positive expression rate of C-erbB-2 in the positive group(35.00%)was significantly lower than that in the negative group(80.00%),with a highly significant difference(P<0.001).The axillary lymph node metastasis rate in the positive group(40.00%)was significantly lower than that in the negative group(75.00%),with a significant difference(P<0.05).Conclusion:Immunohistochemical detection in breast cancer pathology enhances diagnostic accuracy,predicts prognosis,and supports personalized treatment by identifying ER,PR,and C-erbB-2.It is worth being widely adopted in clinical practice.展开更多
Purpose: To evaluate ultrastructural characteristics of lenticule surface extracted during correction of residual myopia in patients after small-incision lenticule extraction (SMILE). Methods and material: This study ...Purpose: To evaluate ultrastructural characteristics of lenticule surface extracted during correction of residual myopia in patients after small-incision lenticule extraction (SMILE). Methods and material: This study had a prospective, consecutive, comparative design. Sixteen patients (16 eyes) underwent additional intervention for residual myopia correction after SMILE. 16 specimens of removed lenticules underwent morphological examination. Markers and reagents were used to determine actin microfilaments, neutral fats and cell nuclei. The tissue was analyzed in layers in 2D slices form, volumetric Z-stacks, or selected areas were formed in orthogonal projections. The surface of the extracted lenticule was analyzed using scanning electron microscopy. Patients’ refractive outcomes were measured postoperatively (1 day;1 and 3 months). Results: Postoperatively uncorrected distance visual acuity (20/20 or better) was in 100% cases 3 months after surgery. Ultrastructural studies have shown the difference in surfaces of the newly formed lenticule. Structural changes of the posterior lenticule surface were characterized by ruptures of collagen fibers on its surface, degenerative changes in keratocytes with signs of colliquation necrosis, cell apoptosis and F-actin in cell cytoplasm. Conclusion: Collagen fibers are immersed in the stroma on the anterior surface of the lenticule. There is no complete structure restoration of collagen fibers explaining the lack of tight adhesion of anterior and posterior surfaces of the intrastromal space even in the long-term postoperative period. There are no degenerative changes of keratocytes on the anterior lenticule surface, that is, their changes in SMILE are reversible in most cases.展开更多
Background: FoxP3 gene variants have been linked to endometriosis, infertility, and autoimmune illnesses, according to numerous researches. Maternal sensitivity to the PE gene and the genetic variations of FoxP3 has n...Background: FoxP3 gene variants have been linked to endometriosis, infertility, and autoimmune illnesses, according to numerous researches. Maternal sensitivity to the PE gene and the genetic variations of FoxP3 has not been thoroughly investigated. Objective: Investigation of the immune-histochemical expression of FoxP3 in placental tissue of PE patients. Methods: A total of 26 pre-eclamptic women as a case and 26 ethnically matched healthy pregnant women as a control group aged between 18 and 40 years old of different gravidity and parity referred to the labor ward for delivery either by vaginal delivery or cesarean section was enrolled to investigate the immunohistochemical expression of FOXP3 in placental tissue of PE patients. Results: Lower expression of FOXP3 IHC was statistically significant and noted in the group of preeclampsia compared to the healthy control group. Lower gestational age at delivery and a higher percentage of cesarean section were statistically significant and noted in the group of preeclampsia compared to the healthy control group. Conclusion: In comparison to the healthy control group, preeclampsia patients had statistically significantly lower FOXP3 IHC expression, and FOXP3 polymorphism was associated with the development of PE. Our findings can serve as a guide for statistical analyses and functional investigations that are more in-depth.展开更多
目的:探讨儿童非肾母细胞瘤性肾脏肿瘤的临床病理学特征、诊断及鉴别诊断。方法:回顾性分析24例儿童非肾母细胞瘤性肾脏肿瘤的临床、病理特点及免疫组化表型。结果:组织学:多囊性肾瘤(polycystic nephroma,CN)(4/24,16.7%),肿瘤由大小...目的:探讨儿童非肾母细胞瘤性肾脏肿瘤的临床病理学特征、诊断及鉴别诊断。方法:回顾性分析24例儿童非肾母细胞瘤性肾脏肿瘤的临床、病理特点及免疫组化表型。结果:组织学:多囊性肾瘤(polycystic nephroma,CN)(4/24,16.7%),肿瘤由大小不等的囊腔构成,囊内衬扁平或单层立方上皮。先天性中胚层细胞肾瘤(congenital mesoblastic nephroma,CMN)(6/24,25%),肿瘤主由束状或片状排列的肌纤维母细胞构成,类似婴儿型纤维肉瘤图像,并可见软骨结构。肾横纹肌样瘤(rhabdoid tumor of the kindey,RTK)(5/24,20.8%),肿瘤细胞呈巢状或片状排列,细胞类似肌纤维母细胞,可见包涵体。肾透明细胞肉瘤(clear cell sarcoma of the kidney,CCSK)(6/24,25%),肿瘤呈巢状或片状分布,细胞透亮,其间有网状血管间隔。Xp11.2易位/TFE3融合相关性肾癌(Xp11.2-translocation/TFE3 fusion-associated renal carcinoma)(3/24,12.5%),肿瘤呈囊状,囊内可见肿瘤细胞呈乳头状生长,胞浆透亮。免疫组化:以上肿瘤细胞均不表达WT-1、Desmin及Myogenin,除RTK以外均表达InI-1。CN免疫组化无特殊。CMN肿瘤细胞表达SMA及Vimentin。CCSK肿瘤细胞高表达CyclinD1及Bcor。Xp11.2易位/TFE3融合相关性肾癌表达TFE3。结论:儿童非肾母细胞瘤性肾脏肿瘤临床不常见,术前临床诊断较为困难,误诊率较高,其治疗不尽相同,病理检查是鉴别诊断非肾母细胞瘤性肾脏肿瘤的最可靠方法。展开更多
The immunohistochemical localization of IAA and the comparison of their relative levels were carried out for the first time in the anthers of Nongken 58S and its wild type Nongken 58 (Oryza sativa subsp. japonica) af...The immunohistochemical localization of IAA and the comparison of their relative levels were carried out for the first time in the anthers of Nongken 58S and its wild type Nongken 58 (Oryza sativa subsp. japonica) after long_day and short_day treatments. The distribution of free_IAA in anthers and its dynamic variation could be reflected by this method. The results showed that the IAA level in the anthers of Nongken 58S after long_day treatment was much lower than that in short_day_treated Nongken 58S and those in wild type Nongken 58 in five stages from pistil and stamen primordia formation to late uninucleate stage. The possible reasons for IAA deficiency in Nongken 58S_LD anthers and its relationship with fertility alteration were also discussed.展开更多
基金2024 Hebei Provincial Health Commision and Medical Science Research Project Plan“Research on the Mechanism of CREB3 Family Members Regulating Tumor Immunity in Breast Carcinoma”(Project No.:20240287)。
文摘Objective:To investigate the clinical value of immunohistochemistry(IHC)detection in the pathological diagnosis of breast cancer.Methods:Eighty breast cancer patients admitted to Baoding No.1 Central Hospital from June 2022 to June 2023 were selected as study subjects.The samples were divided into a positive group(40 cases)and a negative group(40 cases)according to ER and PR test results.Immunohistochemistry was performed on all patients to compare the differences between the two groups in C-erbB-2 positive expression and axillary lymph node metastasis.Results:The positive expression rate of C-erbB-2 in the positive group(35.00%)was significantly lower than that in the negative group(80.00%),with a highly significant difference(P<0.001).The axillary lymph node metastasis rate in the positive group(40.00%)was significantly lower than that in the negative group(75.00%),with a significant difference(P<0.05).Conclusion:Immunohistochemical detection in breast cancer pathology enhances diagnostic accuracy,predicts prognosis,and supports personalized treatment by identifying ER,PR,and C-erbB-2.It is worth being widely adopted in clinical practice.
文摘Purpose: To evaluate ultrastructural characteristics of lenticule surface extracted during correction of residual myopia in patients after small-incision lenticule extraction (SMILE). Methods and material: This study had a prospective, consecutive, comparative design. Sixteen patients (16 eyes) underwent additional intervention for residual myopia correction after SMILE. 16 specimens of removed lenticules underwent morphological examination. Markers and reagents were used to determine actin microfilaments, neutral fats and cell nuclei. The tissue was analyzed in layers in 2D slices form, volumetric Z-stacks, or selected areas were formed in orthogonal projections. The surface of the extracted lenticule was analyzed using scanning electron microscopy. Patients’ refractive outcomes were measured postoperatively (1 day;1 and 3 months). Results: Postoperatively uncorrected distance visual acuity (20/20 or better) was in 100% cases 3 months after surgery. Ultrastructural studies have shown the difference in surfaces of the newly formed lenticule. Structural changes of the posterior lenticule surface were characterized by ruptures of collagen fibers on its surface, degenerative changes in keratocytes with signs of colliquation necrosis, cell apoptosis and F-actin in cell cytoplasm. Conclusion: Collagen fibers are immersed in the stroma on the anterior surface of the lenticule. There is no complete structure restoration of collagen fibers explaining the lack of tight adhesion of anterior and posterior surfaces of the intrastromal space even in the long-term postoperative period. There are no degenerative changes of keratocytes on the anterior lenticule surface, that is, their changes in SMILE are reversible in most cases.
文摘Background: FoxP3 gene variants have been linked to endometriosis, infertility, and autoimmune illnesses, according to numerous researches. Maternal sensitivity to the PE gene and the genetic variations of FoxP3 has not been thoroughly investigated. Objective: Investigation of the immune-histochemical expression of FoxP3 in placental tissue of PE patients. Methods: A total of 26 pre-eclamptic women as a case and 26 ethnically matched healthy pregnant women as a control group aged between 18 and 40 years old of different gravidity and parity referred to the labor ward for delivery either by vaginal delivery or cesarean section was enrolled to investigate the immunohistochemical expression of FOXP3 in placental tissue of PE patients. Results: Lower expression of FOXP3 IHC was statistically significant and noted in the group of preeclampsia compared to the healthy control group. Lower gestational age at delivery and a higher percentage of cesarean section were statistically significant and noted in the group of preeclampsia compared to the healthy control group. Conclusion: In comparison to the healthy control group, preeclampsia patients had statistically significantly lower FOXP3 IHC expression, and FOXP3 polymorphism was associated with the development of PE. Our findings can serve as a guide for statistical analyses and functional investigations that are more in-depth.
文摘目的:探讨儿童非肾母细胞瘤性肾脏肿瘤的临床病理学特征、诊断及鉴别诊断。方法:回顾性分析24例儿童非肾母细胞瘤性肾脏肿瘤的临床、病理特点及免疫组化表型。结果:组织学:多囊性肾瘤(polycystic nephroma,CN)(4/24,16.7%),肿瘤由大小不等的囊腔构成,囊内衬扁平或单层立方上皮。先天性中胚层细胞肾瘤(congenital mesoblastic nephroma,CMN)(6/24,25%),肿瘤主由束状或片状排列的肌纤维母细胞构成,类似婴儿型纤维肉瘤图像,并可见软骨结构。肾横纹肌样瘤(rhabdoid tumor of the kindey,RTK)(5/24,20.8%),肿瘤细胞呈巢状或片状排列,细胞类似肌纤维母细胞,可见包涵体。肾透明细胞肉瘤(clear cell sarcoma of the kidney,CCSK)(6/24,25%),肿瘤呈巢状或片状分布,细胞透亮,其间有网状血管间隔。Xp11.2易位/TFE3融合相关性肾癌(Xp11.2-translocation/TFE3 fusion-associated renal carcinoma)(3/24,12.5%),肿瘤呈囊状,囊内可见肿瘤细胞呈乳头状生长,胞浆透亮。免疫组化:以上肿瘤细胞均不表达WT-1、Desmin及Myogenin,除RTK以外均表达InI-1。CN免疫组化无特殊。CMN肿瘤细胞表达SMA及Vimentin。CCSK肿瘤细胞高表达CyclinD1及Bcor。Xp11.2易位/TFE3融合相关性肾癌表达TFE3。结论:儿童非肾母细胞瘤性肾脏肿瘤临床不常见,术前临床诊断较为困难,误诊率较高,其治疗不尽相同,病理检查是鉴别诊断非肾母细胞瘤性肾脏肿瘤的最可靠方法。
文摘The immunohistochemical localization of IAA and the comparison of their relative levels were carried out for the first time in the anthers of Nongken 58S and its wild type Nongken 58 (Oryza sativa subsp. japonica) after long_day and short_day treatments. The distribution of free_IAA in anthers and its dynamic variation could be reflected by this method. The results showed that the IAA level in the anthers of Nongken 58S after long_day treatment was much lower than that in short_day_treated Nongken 58S and those in wild type Nongken 58 in five stages from pistil and stamen primordia formation to late uninucleate stage. The possible reasons for IAA deficiency in Nongken 58S_LD anthers and its relationship with fertility alteration were also discussed.
