E838对放烧复合伤小鼠造血功能的保护作用

目的：研究炔雌醇衍生物E838对放烧复合造血功能保护作用,同时与公认抗放效果较好的Nilestriol进行比较。方法：采用两种给药方案,在致伤后2－32d计数外周血白 细胞和骨髓有核细胞,进行骨髓造血祖细胞CFU－E和CFU－GM培养,观察造血功能的变化。结果：在本实验用药方案条件下,E838对放烧复合伤造血功能有保护作用,部分指标效果较Nilestriol要好。结论：E838是一种有开发价值的抗放药。     

葛根异黄酮对去卵巢大鼠骨矿密度和骨强度的影响

目的：研究葛根总异黄酮（TIP）对雌激素缺乏引起的骨质疏松症的防治作用。方法：10月龄SD大鼠,手术切除双侧卵巢后7d,每天igTIP100和20mg/kg,并设假手术组（Sham)、模型对照组（OVX）和尼理论联系实际是性组（E3）,在给药4和7个月时,测定大鼠全身骨矿总量（BMC）和骨矿密度（BMD）及骨生物力学强度等。结果（1）和OVX组相比,TIP大剂量组在给药4个月时BMC和BMD分别提高14．6％和12．1％,7个月时分离提高6．8％和14．2％;小剂量组4个月时分别提高7．8％和6．9％,7个月时分离提高8．65和14．95。（2）TIP大、小剂量组股骨相对体积质量分别提高3．8％和3．4％;胫骨相对休整质量提高6．8％和6．3％,股骨Ca盐密度均提高15％以上。（3）TIP大、小剂量组股骨最大负荷分别提高16．1％和9．1％;结构强度分别提高19．4％和12．5％,（4）TIP使大鼠子宫重量明显增加。结论TIP对去卵巢引起的大鼠骨质疏松症具有明显的防治作用,这种作用可能和它的弱雌激素样活性有关。     

The relationship of CyclinD1 and estrogen receptor expression in the process of proliferation and metastasis in breast neoplasm

Cylin D1 play a very importantrole in the prolifi-ration of tumor cells.The purpose of this study wasto investigate the role of Cylin D1 and estrogen recep-tor ( ER) expression in breast carcinomas and theirrelationship.1　MATERIALSAND METHODS1 .1　 Clinical DataAll the 1 46cases of breast neoplasm were fe-males with age ranging from 1 8to 65 years ( average45 .34± 1 0 .39) .The enrolled in this study were5 6cases of benign breast mass including 44cases ofbreastfibroadenoma,1 2 case…     

尿液结合性胆红素的纯化

目的　探索一种来源方便 ,具有延续性 ,利于胆红素测定校准物或质控物制备 ,且方法简便、实用、产率和纯度可靠的结合性胆红素 (Bc)纯化方法。方法　应用 CHCl3 ∶ CH3 CH2 OH(1∶ 1,V/V)萃取与 CNBractivated Sepharose4B- HSA亲和层析相结合的方法对胆道梗阻性高胆红素尿液进行分离纯化 ,并以 Doum as J- G法和 HPL C分析产品。结果　由 CHCl3 ∶ CH3 CH2 OH(1∶ 1,V/V)萃取所得的粗纯品经 J- G法检测产率为 90 .2±5 .4% (n=3) ,胆红素含量占总干重的 6 7.9± 6 .4% (n=3)。亲和层析的洗脱峰间的分离度为 1.5、1.737。层析后再萃取所得精纯品经 HPL C分析 ,产率为 46 .9% ,纯度 94.7% ,其中 BDG76 .2 % ,BMG18.5 %。结论　采用有机物萃取和 CNBr activated Sepharose4B- HSA亲和层析相结合的方法纯化结合性胆红素 (BMG& BDG)具有很好的可靠性和可行性     

Investigating the effects of walnut ointment on non-healing burn wounds

Effective treatments for non-healing burn wounds are an unmet need for 95% of burn sufferers. Approaches currently available to treat non-healing burn wounds are not satisfactory due to undesirable side-effects or expense. The anti-oxidation and antibacterial activities of walnuts are recommended for treating chronic diseases. Walnut ointment has been developed and successfully applied to treat non-healing burn wounds in our hospital for decades. We report herein a detailed retrospective case review examining patients’ response to the walnut ointment. The walnut ointment has shortened healing time of non-healing burn wounds and improved clinical outcomes. In order to investigate the mechanism of action, walnut ointment has been applied on wounds of porcine full-thickness burn wound models. Histological and immunohistochemical analysis indicated our walnut ointment supports wound healing through promoting keratinocyte proliferation and differentiation. Taken together, we recommend the walnut ointment offers an effective and economical treatment for patients presenting with non-healing burn wounds.     

Estrogen and estrogen receptors in kidney diseases

Acute kidney injury (AKI) and chronic kidney disease (CKD) are posing great threats to global health within this century. Studies have suggested that estrogen and estrogen receptors (ERs) play important roles in many physiological processes in the kidney. For instance, they are crucial in maintaining mitochondrial homeostasis and modulating endothelin-1 (ET-1) system in the kidney. Estrogen takes part in the kidney repair and regeneration via its receptors. Estrogen also participates in the regulation of phosphorus homeostasis via its receptors in the proximal tubule. The ERα polymorphisms have been associated with the susceptibilities and outcomes of several renal diseases. As a consequence, the altered or dysregulated estrogen/ERs signaling pathways may contribute to a variety of kidney diseases, including various causes-induced AKI, diabetic kidney disease (DKD), lupus nephritis (LN), IgA nephropathy (IgAN), CKD complications, etc. Experimental and clinical studies have shown that targeting estrogen/ERs signaling pathways might have protective effects against certain renal disorders. However, many unsolved problems still exist in knowledge regarding the roles of estrogen and ERs in distinct kidney diseases. Further research is needed to shed light on this area and to enable the discovery of pathway-specific therapies for kidney diseases.     

绝经后骨质疏松性椎体压缩性骨折患者血清雌激素、前脂肪因子-1水平与骨代谢和骨密度相关性研究

目的 研究绝经后骨质疏松性椎体压缩性骨折（osteoporotic vertebral compression fracture,OVCF）患者血清雌激素、前脂肪因子-1（preadipose factor-1,Pref-1）水平与骨代谢和骨密度的相关性。方法 纳入湛江中心人民医院2019年1月至2020年11月期间确诊的64例绝经OVCF患者为OVCF组,同时纳入绝经后的健康女性45名为对照组,比较OVCF组和对照组血清中雌二醇、Pref-1水平,并根据OVCF患者血清中雌二醇、Pref-1的水平分为高低亚组,进行患者骨代谢、骨密度等一系列指标的比较,通过Preason相关性分析雌二醇、Pref-1的水平与骨代谢、骨密度指标的相关性。结果 OVCF患者血清中雌二醇水平较对照组显著降低（t=13.275,P<0.05）,Pref-1水平显著上升（t=10.360,P<0.05）;雌二醇高表达组较低表达组患者血清中25-（OH）VitD、N-MID的水平以及腰椎骨密度、髋部骨密度均显著上升（t=7.378,5.472,10.290,9.774,P<0.05）,PINP、β-CTX水平均显著降低（t=6.447,9.103,P<0.05）;Pref-1高表达组较低表达组患者血清中25-（OH）VitD、N-MID的水平以及腰椎骨密度、髋部骨密度均显著下降（t=8.350,7.426,12.376,10.450,P<0.05）,PINP、β-CTX水平均显著升高（t=8.266,11.205,P<0.05）;OVCF患者血清雌二醇水平与25-（OH）VitD、N-MID以及腰椎骨密度、髋部骨密度均呈正相关（r>0,P<0.05）,与PINP、β-CTX水平呈负相关（r<0,P<0.05）;Pref-1与25-（OH）VitD、N-MID的水平及腰椎骨密度、髋部骨密度均呈负相关（r<0,P<0.05）,与PINP、β-CTX水平呈正相关（r>0,P<0.05）。结论 绝经后OVCF患者血清雌激素显著下调,Pref-1水平明显上调,且二者与骨代谢和骨密度指标之间存在密切相关性,对二者水平的医学干预或能为OVCF的临床治疗带来新的契机。     

Breast cancer in young women: Imaging and clinical course

The purpose of this study was to characterize presenting imaging findings in women younger than 40 diagnosed with invasive breast cancer in the context of pathology and clinical course. Retrospective chart and imaging reviews were performed in patients under 40 diagnosed with breast cancer between July 1, 2004, and December 31, 2013. Patient demographic, imaging, pathology, and clinical data were collected. Overall and recurrence-free survival were estimated using the Kaplan-Meier method. Univariate Cox proportional hazards models were performed to identify factors associated with recurrence-free survival. Our study cohort consisted of 110 patients with invasive mammary carcinoma. One hundred one (91.8%) presented with a palpable mass. The mean size of all lesions on imaging was 3.5 cm ± 2.9 cm. Malignant calcifications were present in 54 (49.1%) cases. Imaging demonstrated multifocal or multicentric disease in 45 (40.9%) cases. Seventy four (67.3%) cancers were high grade. Luminal genomic subtypes were the most common (n = 61, 55.5%). At presentation, 4 (3.6%) patients had bilateral malignancy and 8 (7.3%) patients had distant metastatic disease. Ninety seven (88.2%) underwent neoadjuvant chemotherapy and 67 (60.9%) underwent radiation therapy. Seventy five (68.2%) of the patients underwent mastectomy. The restricted mean time to recurrence was 9.01 years (standard error 3.162 months). ER positivity was associated with compromised recurrence-free survival. The overall survival rate was 0.962 at 10 years. Young patients diagnosed with breast cancer typically present with advanced breast imaging findings and undergo aggressive treatment. Recurrence often occurs >5 years from diagnosis, and ER positive subtypes are at increased risk for recurrence.     

Functional characterization of somatic point mutations of the human estrogen receptor alpha (hERalpha) in adenomyosis uteri

Endometriosis and adenomyosis uteri are chronic, benign diseases caused by the presence of endometrial tissue in ectopic locations, e.g. peritoneal or deep inside the myometrial wall of the uterus and/or in the rectovaginal septum. Although adenomyosis might be considered as a special form of endometriosis, both conditions differ with respect to clinical symptoms and treatment. Induction of a hypo-estrogenic state alone or in combination with surgical removal of the extra-uterine lesion is mostly sufficient for treatment of peritoneal endometriosis. By contrast, adenomyosis uteri rarely responds to hormonal therapy and usually requires a hysterectomy for cure. Consequently, the role of steroid hormone receptors with respect to the aetiology of either condition is still a matter of discussion. Using PCR/single strand conformation polymorphism analysis, we identified somatic estrogen receptor (ER) alpha gene mutations in three out of 55 samples from adenomyosis uteri. Functional characterization revealed that two of the mutant ERalpha proteins display severely impaired DNA-binding and transactivation properties secondary to an altered response to estrogens or changes in epidermal growth factor-mediated ligand-independent activation. Although the exact mechanism remains unknown, we suggest that mutation-related silencing of estrogen responsiveness might render endometriotic cells resistant to hypo-estrogenic conditions thereby accounting for failure of estrogen-ablative therapy in adenomyosis.