中国西南地区蠛蠓属四新种描述（双翅目：蠓科）

本文描述了采自中国西南地区的蠛蠓属Ｌａｓｉｏｈｅｌｅａ４新种,分别是采自四川的细小蠛蠓Ｌ．ｐａｒｖｉｔａｓｓｐ．ｎｏｖ,竹林蠛蠓Ｌ．ｂｏｍｂｕｓａ,ｓｐ．ｎｏｖ采自云南的山栖蠛蠓Ｌ．ｏｒｅｉｔａ,ｓｐ．ｎｏｖ．及采自西藏的孟氏蠛蠓Ｌ．ｍｅｎｇｉ,ｓｐ．ｎｏｖ。模式标本保存于北京医学昆虫标本馆。     

吉林省铗蠓属一新种：双翅目：蠓科

本文记述铗蠓属蠛蠓亚属吸血蠓一种新种,浑江铗蠓Ｆｏｒｃｉｐｏｍｙｉａ（Ｌａｓｉｏｈｅｌｅａｈｕｎｊｉａｎｇｅｎｓｉｓｓｐ．ｎｏｖ．,描述了成蠓的形态,并与近似种作鉴别比较。     

尼泊尔蠛蠓新种描述(双翅目 :蠓科)(英文)

本文描述了尼泊尔蠛蠓新种的两性成虫的形态特征 ,以其纤长的口甲齿和宽而尖的雄性阳茎中叶为主要特征。但其口甲齿与发现于马来西亚的细齿蠛蠓 (LasioheleatenuidentisYuandWirth)很相像 ,而该蠓触须无感觉器窝 ,受精囊褐色 ,圆形 ,明显不同。     

中国蠓科(双翅目)一新种及三新纪录种记述

记述了毛蠓属中国3新纪录种及蠛蠓属1新种,它们分别是:共同毛蠓Dasyhelea communis Kirffer、黄腹毛蠓Dasyhelea luteoventris Goetghebuer、黄色毛蠓Dasyhelea lutea Remm and Zhogolev和留坝蠛蠓Lasiohelea gubaensis Yu,Liu et Yan,sp.nov.,并首次描述了这3种新纪录毛蠓的蛹和幼虫特征.所有标本都存于医学昆虫标本馆.     

四川省毛蠓属二新种：双翅目：蠓科

本文报导采自四川省的毛蠓二新种,即西部毛蠓Ｄ．ｏｃｃａｓｕｓ,ｓｐ．ｎｏｖ。和泸定毛蠓Ｄ．ｌｕｄｉｎｇｅｎｓｉｓ,ｓｐ．ｎｏｖ。新种的模式标本保存在北京医学昆虫标本馆。     

中国蠓科昆虫(双翅目)区系分布概况

至今已查知全国共有蠓类4亚科39属1011种。叙述了我国各省区已知蠓类及其区系分布概况,鄂豫交界地带是东洋界和古北界蠓类种群的交汇带。吸血蠓类中,细蠓多见于西北荒漠地区,蠛蠓是南方湿润地区的优势种群。库蠓种类繁杂,南北方各有不同优势种群,北方蠓类群落构成的种群较简单,而优势种突出。南方蠓类群落构成的种群复杂,优势种不很突出。     

新疆天山毛蠓属二新种：双翅目：蠓科

本文报道采自新疆天山的毛蠓属Ｄａｓｙｈｅｌｅａ２新种,分别为天山毛蠓Ｄ．ｔｉａｎｓｈａｎａｓｐ．ｎｏｖ．和高山毛蠓Ｄ．ｍｏｎｔａｎｓｐ．ｎｏｖ。模式标本保存在北京医学昆虫标本馆。     

铗蠓属一新亚属及其二新种（双翅目：蠓科）

记述发现于我国的铗蠓属Ｆｏｒｃｉｐｏｍｙｉａ１新亚属－－奇蠓亚属Ａｔｏｐｏｍｙｉａ ｓｕｂｇ．ｎｏｖ．及其２新种：奇异铗蠓Ｆ．（Ａｔｏｐｏｍｙｉａ）ａｔｏｐｉａ,ｓｐ．ｎｏｖ．和山地铗蠓Ｆ．（Ａｔｏｐｏｍｙｉａ）ｉｄａｅｕｓ,ｓｐ．ｎｏｖ．。模式标本保存于北京医学昆早标本馆。     

中国异蠓族一新属（双翅目：蠓科）

本文描述了蠓科异蠓族的湿蠓新属Ｍｅｄｅｏｂｅｚｚｉａ,ｇｅｎ．ｎ．及其模式种孤单湿蠓Ｍｅｄｅｏｂｉｚｚｉａ ｓｉｎｇｕｌａｒｉｓ,ｓｐ．ｎ．。模式产地为湖北省武当山麓,收藏于军事医学科学院医学昆虫标本馆。     

细蠓属一新种记述（双翅目：蠓科）

本文记述宁夏回族自治区银川市平吉堡地区吸血双翅目蠓科细蠓属１新种：以新细蠓Ｌｅｐｔｏｃｏｍｏｐｓ ｙｉｘｉｎｉ,ｓｐ．ｎｏｖ。模式标本保存在兰州军区军事医学研究所标本室。     

Curcuminoids as inhibitors of thioredoxin reductase: A receptor based pharmacophore study with distance mapping of the active site

Curcumin is the yellow pigment of turmeric that interacts irreversibly forming an adduct with thioredoxin reductase (TrxR), an enzyme responsible for redox control of cell and defence against oxidative stress. Docking at both the active sites of TrxR was performed to compare the potency of three naturally occurring curcuminoids, namely curcumin, demethoxy curcumin and bis-demethoxy curcumin. Results show that active sites of TrxR occur at the junction of E and F chains. Volume and area of both cavities is predicted. It has been concluded by distance mapping of the most active conformations that Se atom of catalytic residue SeCYS498, is at a distance of 3.56 from C13 of demethoxy curcumin at the E chain active site, whereas C13 carbon atom forms adduct with Se atom of SeCys 498. We report that at least one methoxy group in curcuminoids is necessary for interation with catalytic residues of thioredoxin. Pharmacophore of both active sites of the TrxR receptor for curcumin and demethoxy curcumin molecules has been drawn and proposed for design and synthesis of most probable potent antiproliferative synthetic drugs.     

A Unique Protease Cleavage Site Predicted in the Spike Protein of the Novel Pneumonia Coronavirus (2019-nCoV) Potentially Related to Viral Transmissibility

正Dear Editor,In December 2019, a novel human coronavirus caused an epidemic of severe pneumonia(Coronavirus Disease 2019,COVID-19) in Wuhan, Hubei, China(Wu et al. 2020; Zhu et al. 2020). So far, this virus has spread to all areas of China and even to other countries. The epidemic has caused 67,102 confirmed infections with 1526 fatal cases     

Comparative morphology of the carpel in the Liliaceae: Hewardieae, Petrosavieae, and Tricyrteae

The young pistils in the melanthioid tribes, Hewardieae, Petrosavieae and Tricyrteae, are uniformly tricarpellate and syncarpous. They lack raphide idioblasts. All are multiovulate, with bitegmic ovules. The Petrosavieae are marked by the presence of septal glands and incomplete syncarpy. Tepals and stamens adhere to the ovary in the Hewardieae and the Petrosavieae but not in the Tricyrteae. Two vascular bundles occur in the stamens of the Hewartlieae and Tricyrtis latifolia. Ventral bundles in the upper part of the ovary of the Hewardieae are continuous with compound septal bundles and placental bundles in the lower part. Putative ventral bundles occur in the alternate position in the Tricyrteae and putative placental bundles in the opposite. position in the Petrosavieae. The dichtomously branched stigma in each carpel of the Tricyrteae is supplied by a bifurcated dorsal bundle.     

鸡传染性法氏囊病病毒研究进展

传染性法氏囊病(Infection bursal disease, IBD)是由鸡传染性法氏囊病毒(Infectious bursal disease virus, IBDV)引起的鸡和火鸡的一种高度接触性传染病,给世界各国的禽养殖业带来了巨大损失.自IBDV发现至今新的变异株不断出现,分子结构的改变导致病毒致病力的改变及宿主对疫苗应答的改变,使得传统的疫苗已不能控制其流行,因此各国学者对其基因组结构和功能进行了广泛深入的研究,并积极研制新型有效的疫苗以达到防治的目的.     

Development of a Novel Reverse Transcription Loop-Mediated Isothermal Amplification Method for Rapid Detection of SARS-CoV-2

In conclusion, the novel visual RT-LAMP assay is a simple, rapid, and sensitive approach for detection of SARS-CoV-2, and it is ready for application in primary care and community hospitals or health care centers, and even patients' own houses in response to the current SARS-CoV-2 epidemic because the assay does not require sophisticated equipment and skilled personnel. Furthermore, it is also ready to be used in fields for screening samples from wild animals and environments to facilitate the identification of potential intermediate hosts that mediate the cross-species transmission of SARS-CoV-2 from bats to humans.     

Perinatal Vertical Transmission of Chikungunya Virus in Ruili,a Town on the Border between China and Myanmar

正Dear Editor,Chikungunya virus (CHIKV), an arbovirus in the family of Togaviridae, genus Alphavirus, is transmitted by the A.aegyptii or A. albopictus mosquito, and causes disease in humans characterized by fever, rash, and arthralgia (Silva and Dermody 2017; Suhrbier 2019). It was first reported in 1953 in Tanzania, and caused only a few outbreaks and sporadic cases in Africa and Asia in last century. However, in the epidemic in 2004, CHIKV acquired mutations that conferred enhanced transmission by the A. albopictus mosquito(Schuffenecker et al. 2006). Since then, it has successively caused outbreaks in Africa, the Indian Ocean, South East Asia, the South America, and Europe (Zeller et al. 2016).