Carvedilol can attenuate histamine-induced paw edema and formaldehyde-induced arthritis in rats without risk of gastric irritation

Background and aimRheumatoid arthritis treatment aims to control joint damage and any associated complications such as cardiovascular disease. Most anti-inflammatory drugs have a high tendency to cause gastro-intestinal irritation. The present study is designed to investigate the anti-inflammatory effect of carvedilol and to study its effect on gastric mucosa.Experimental approachLornoxicam (1.3 mg/kg) or carvedilol (10 mg/kg) was administrated orally 1 h before histamine injection into animals of a histamine-induced paw edema model and orally daily for 11 days into animals of a formaldehyde-induced arthritis model. Tumor necrosis factor-α and prostaglandin E₂ were measured in animals of the formaldehyde-induced arthritis model. The effect of lornoxicam and carvedilol on gastric mucosa was assessed in normal rats and after induction of cold stress ulcer.ResultsCarvedilol succeeded in reducing hind paw edema in both histamine-induced paw edema and formaldehyde-induced arthritis and in reducing the elevated level of tumor necrosis factor-α and prostaglandin E₂ nearly with near equal efficacy compared with lornoxicam. Carvedilol did not show any ulcerative effect on the gastric mucosa of normal rats, and its use was associated with an improvement of both the gross and histopathological pictures of gastric ulcers in animals of the cold stress ulcer model compared with lornoxicam treated rats.ConclusionThe current findings support the use of carvedilol both in the management of inflammation as well as the prevention of cardiovascular complications in rheumatoid arthritis patients. The use of carvedilol was not associated with any gastro-intestinal tract irritation.     

基于“健康中国”战略的公共图书馆健康信息服务

通过综述国内外公共图书馆健康信息服务研究文献，分析“健康中国”战略背景下公共图书馆开展公众健康信息服务的必要性和可行性，总结英国和美国的公共图书馆健康信息服务实践，提出了我国公共图书馆公众健康信息服务策略，即拓展健康信息服务功能、深化健康信息服务内容、针对服务对象提供分众服务及提升常态化应急信息服务能力。     

Case series of two patients with Fibrocartilaginous Embolism mimicking Transverse Myelitis of the Spinal Cord

Fibrocartilaginous Embolism (FCE) refers to the extrusion of some of the fibro-cartilaginous nucleus pulposus material from within the inter-vertebral disc to eventually embolize into one of the spinal cord vessels with resultant spinal cord infarction. According to a 2016 review, AbdelRazek et al. (2106) [1] there are 41 pathologically confirmed and 26 clinically suspected cases in the literature till the end of 2015. We add two more clinically diagnosed cases.     

Botryomycome lingual néonatal (à propos d’une observation)

IntroductionThe botryomycoma is a benign tumor that develops as a response to a local trauma. Generally, it occurs in the fingers, the face and the oral cavity. It is often easily recognized. However, the diagnosis between this tumor and other oral tumors, whether benign or malignant, may be difficult in some cases. We report a particular case of a botryomycoma that occurred with no history of a trauma at an earlier age in the tongue, which is an unusual site for this tumor.Case reportA 7-month-old infant presented with a polypoid and sessile swelling on the dorsal side of the tongue. This tumor gradually increased in size since birth. Clinically, the appearance of this mass with the gathered vessels inside was similar to that of a benign vascular tumor. A possibly malignant nature was not excluded. A complete resection under general anesthesia was performed. The histologic examination confirmed the diagnosis of pyogenic granuloma.DiscussionPyogenic granuloma is a rare benign tumor which is most likely to occur between the age of 11 and 40. The most frequent location encountered for oral cavity is the gingiva. The tongue is rarely a site for its occurrence. Cutaneous pyogenic granuloma may have different aspect from mucosal type and thus may make the diagnosis difficult. Treatment consists on surgical excision and removal of etiological factors that may be source of recurrence.     

孤立性膀胱浆细胞瘤的病例分析及文献复习

目的探讨孤立性膀胱浆细胞瘤的临床表现、诊断与治疗。方法回顾分析我院于20l9年5月10日收治的1例膀胱浆细胞瘤患者的临床病理特征资料、诊疗过程、随访情况,总结现有文献讨论并总结本病诊治心得。结果51岁女性,因尿急尿痛入院。术前CT增强考虑肿瘤性病变,未除外膀胱癌,行膀胱镜检查+经尿道膀胱肿瘤电切术。术后病理提示为黏膜固有层内见大小一致的肿瘤细胞弥漫浸润,核偏位,呈浆细胞样,核分裂象罕见,高度疑为浆细胞瘤。免疫组化染色:Ki67(2%+),CD38(+),CD138(+),Kappa(+),Lambda(–)。术后予行进一步放疗(50Gy/25F),7个月后复查未见肿瘤复发及转移。结论膀胱浆细胞瘤临床上极其罕见,无特征性临床表现,治疗推荐选用根治性放疗联合手术切除;另外,血液科、放疗科和外科医师间的紧密协作对于制定合适的治疗方案至关重要。     

Development of imaging probes for bone cancer in animal models. A systematic review

Bone is a dynamic tissue that is constantly remodeled throughout the lifetime to ensure the integrity of the skeleton. Primary cancer cells disseminate into circulation, often extravasating to bone, where they interact with the bone marrow to grow and proliferate, disrupting the bone homeostasis. Although primary bone tumors account for less than 0.2% of all cancers, bone is a common site for the development of metastases, as its microenvironment provides the necessary conditions for the growth and proliferation of cancer cells. Metastases to the skeletal system are observed in up to 70% of all cancer patients and the growth of disseminated tumor metastases is a major cause of mortality. As widely known, a non-invasive diagnosis of bone tumors at early stages is of great importance to provide insights that will help on the decision of therapy regimen, improving treatment outcomes. Early diagnosis of bone metastases is also an important step for establishing palliative care as they may cause serious endocrine, hematologic, neurologic and orthopedic complications as well as intolerable pain. Therefore, development of new imaging techniques, imaging moieties, and animal models to mimic these bone conditions, play an important role in improving the clinical outcome of this disease. In this review, we will briefly describe the advantages and disadvantages of the currently available imaging techniques that aim at identifying bone tumors. In addition, we will provide an update on the animal models applicable at mimicking bone tumor characteristics, as well as describe recent advances on the development of new imaging probes, in the preclinical settings including targeted nanoparticles and radiopharmaceuticals.