尿石症与骨质疏松相关性的研究进展

尿路结石与骨质疏松均存在钙代谢异常,且发病率高,对生活质量造成严重影响,研究表明两者之间存在一定相关性。高钙尿症通过骨吸收增加等,或为两者发病机制间的关键桥梁。对遗传因素的研究中也发现了许多与两者有关的基因,主要为腺苷酸环化酶10基因、1,25-(OH)2D3-24羟化酶基因、钙敏受体与紧密连接蛋白14基因。但对上述一些基因变异与尿石症和骨质疏松的研究尚存在不同结论,且其具体机制仍待进一步研究。雌激素缺乏通过骨丢失、减少瞬时感受器电位阳离子通道V5表达,造成高钙尿、低骨量,导致尿石症及骨质疏松。高蛋白、高钠、低钙等饮食因素也能影响两者的形成,笔者综述两者之间相关性的研究进展。     

疏肝健脾法治疗腹泻型肠易激综合征1例

肠易激综合征（IBS）是一种常见的功能性疾病，中医病名为"肠郁"。郭朋教授根据IBS生理、病理特点，以疏肝健脾法调和肝脾，辨证施治，取得良好疗效。文章从病因病机、辨证论治及经典案例介绍等几个方面对郭教授治疗IBS经验进行系统阐述，以期为中医药治疗IBS提供理论和方法学参考。     

儿童室管膜瘤的临床研究进展

室管膜瘤是一种原发于神经上皮的中枢神经系统肿瘤，病变累及脑和脊髓，多发于儿童。基因分型的新分类方法，为室管膜瘤的治疗和预后评估提供了更为可靠的依据。室管膜瘤对辅助治疗的敏感性低是造成患儿预后较差的重要原因之一。该文对近年来儿童室管膜瘤的分型、诊断、治疗策略等进行综述。     

基于病因病机分析各省市新型冠状病毒肺炎的中医药防治

新型冠状病毒肺炎属于中医学“疫病”范畴。疫情爆发以来,全国各省市卫生行政管理部门坚持中西医结合原则,陆续制定了各省市的中医药防治方案,三因制宜,分期分型辨证并不断完善。笔者全面收集并整理相关信息,基于病因病机分析了各省市中医药防治方案,认为此次疫病是外感疫气,病位主要在肺卫,病邪主要表现为“毒、湿、热、虚、寒”。此“毒”即为疫气,武汉遇暖冬,非其时而有其气而发疫,一气一病,播散流行,治疫必先治毒;“湿”邪之地在南北方各占一半,东西部均有,在南方源于季节和地域,在北方可由寒挟杂,治疗均应祛湿;“热”主要见于南方,为南方常见的病邪,亦可因湿毒入里,湿郁化热,而在北方热与湿同现,主要是因湿毒入里,湿郁化热,治热均以清为主;“虚”则主要在北方,北方冬季多寒,易伤正致虚,或邪正交争激烈,伤阳伤阴致虚,宜祛邪为标,扶正为本;“寒”见于北方和南方山区,寒气过甚,易伤阳伤正,故尤其要注重预防,且以补正气为主。中医防疫治疫应三因制宜,重视预防,与时俱进。     

Herpes simplex virus latency in the nervous system – a new model

Permissive herpes simplex virus (HSV) infection in tissue culture results in host cell destruction. Latent HSV infection in vivo occurs in neurons of peripheral sensory ganglia (PSG) and it therefore can not take place in neurons in which the virus has completed a lytic replication cycle similar to that present in vitro. Our hypothesis, based on experimental data and observations in humans, suggests that establishment of latent infection and reactivation of HSV-1 does not involve neuronal cell loss. Latency is established in neurons in which the virus does not replicate and is determined, in part, by the tissue levels of a herpes transactivating protein (Vmw65) that is a component of the viral tegument. We also suggest that reactivation of latent infection does not involve destruction of neurons and is due to replication of virus at the peripheral mucocutaneous tissues to where virus or viral DNA have been transported from the nervous tissue. Alternatively, reactivation is initiated in the PSG using a replication cycle which does not involve irreversible damage to neurons. This model explains the lack of damage to neurons which continue to serve as permanent reservoirs of latent virus for the entire life of the host.     

Vascular endothelial growth factor in psoriasis: an indicator of disease severity and control

Background  Psoriasis is a chronic disease characterized by abnormal epidermal proliferation, inflammation and angiogenesis. It has been reported that vascular endothelial growth factor (VEGF) is overexpressed in lesional psoriatic skin and its serum levels are significantly elevated in patients with moderate to severe disease.
Objective  This study aims to evaluate the possible role of VEGF in the pathogenesis of psoriasis, and its significance as an indicator of disease severity and control.
Methods  Thirty patients with moderate to severe psoriasis and 10 healthy controls were subjected to baseline evaluation of VEGF. Patients were divided into three groups according to the received treatment: psoralen plus ultraviolet A (PUVA) thrice weekly (group 1), acitretin 50 mg daily (group 2), and combined PUVA twice weekly and acitretin 25 mg daily (group 3).Treatment continued for 16 weeks or up to clinical cure. Every patient was subjected to severity evaluation by Psoriasis Area and Severity Index (PASI) and measurement of serum VEGF before and after treatment.
Results  Mean serum levels of VEGF were significantly elevated in patients (327 ± 66.2 pg/mL) than control subjects (178 ± 83.4 pg/mL). A highly significant correlation was found between VEGF and PASI score, but not with other variables. The best clinical response, the least side-effects and the highest reduction of VEGF serum levels were achieved by the combined therapy.
Conclusion  The present study supported the proposed role of VEGF in the pathogenesis of psoriasis, and suggested that it could serve as a good indicator of disease severity and control.     

冠心病心绞痛中医证候规律研究的比较分析

对冠心病心绞痛中医证候规律研究类的文献，从证候要素分布的差异、主要证候分类的差异、证候要素与理化指标的相关研究等方面进行比较分析，初步认为本病的证候要素应证组合是以气虚、血瘀为中心，阴虚、痰浊为次中心，气滞、阳虚、热蕴为外围所组成的多层次的证候体系。     

Retinopathy of prematurity: approaches to surgical therapy

Retinopathy of prematurity (ROP) is a vaso-proliferative disease with infiltration of the vitreous gel. Contraction of the infiltrate results in traction detachment with typical peripheral trough formation. Cryotherapy inhibits proliferation in the active stages of the disease (Stage 3, 'plus'). With development of traction detachment involving the macula (Stage 48) encircling buckling procedures should first be tried. Closed vitrectomy is considered when high retinal detachment and opacification by vitreous strands occur. The surgical technique is described. Anatomical (64%) and functional (43%) successes are reasonably high for Stage 4 cases, but disappointing (anatomical 40%, functional 16%) for Stage 5 ROP. Open funnels of detached retina fare better than closed ones. It is probably best to perform surgery not before the cicatricial stage, i.e. six months after birth.     

动脉粥样硬化形成和消退的形态学研究

本文报告动脉粥样硬化(AS)形成和消退研究的部分工作。在复制AS形成和消退模型的基础上,研究了AS形成和消退中的内皮细胞、平滑肌细胞和单核细胞的改变。