黑鬃秆蝇属八新种（双翅目：秆蝇科）

本文记述了双翅目秆蝇科(chloropidac)黑鬃秆蝇属Melanochaera 8个新种,均分布于我国云南省。     

中国锥秆蝇属新种记述 (双翅目：秆蝇科)

锥秆蝇属 Rhodesiella Adams为秆蝇科一大属,全世界已知93种,分布于东洋区、古北区、澳洲区、埃塞俄比亚区和新北区,尤其以东洋区种类最为丰富。该属的种类体呈黑色,胸部略隆突,小盾片锥形,有2—3对鬃位于瘤突上,翅有较大的臀区和较宽大的盘室。我国已知13种,主要分布于台湾省。本文记述了3个新种,模式标本保存在北京农业大学昆虫标本室。     

云南省秆蝇科新种记述：双翅目：无瓣蝇类

云南省秆蝇科新种记述（双翅目：无瓣蝇类）杨定,杨集昆（北京农业大学植保系,北京１０００９４）关键词双翅目,秆蝇科,新种,分类学,中国（云南）本文记述了云南省双翅目秆蝇科Ｃｈｌｏｒｏｐｉｄａｅ３种,分别隶属于３个不同的属,其中云南粗腿秆蝇Ｐａｃｈｙｌｏ...     

中国宽头秆蝇属二新种：双翅目：秆蝇科

中国宽头秆蝇属二新种（双翅目：秆蝇科）杨集昆,杨定（北京农业大学植物保护系,北京市１０００９４）关键词双翅目,秆蝇科,宽头秆蝇属,新种双翅目秆蝇科（ＣｈｌｏｒｏＰｉｄａ）的宽头秆蝇属（Ｐｌａｔｙｃｅｐｈａｌ）种数不多,包括一些体型较大的秆蝇。我国仅东...     

秆蝇科一新属及四新种（双翅目：无瓣蝇类）

本文记述了双翅目秆蝇科1新属4个新种。     

中国新锥秆蝇属种类(双翅目,秆蝇科)(英文)

对我国新锥秆蝇属的种类进行研究,记述1新种,即广西新锥秆蝇Neorhodesiella guangxiensis sp.nov.,并编制分种检索表。模式标本保存在中国农业大学昆虫博物馆。     

中国四川妙蝇属(Myospila)的分类研究(双翅目:蝇科:圆蝇亚科)

记述蝇科(Muscidae)妙蝇属(Myospila)的主要特征及研究现状;编制了中国四川已知的22种的检索表,并报道其中的1个新种:仿移妙蝇(Myospila mimelongata Feng,sp.nov.)。新种模式标本存于中国科学院上海植物生理生态研究所昆虫博物馆。     

中国四川池蝇属(双翅目,蝇科)的分类研究及一新种记述

记述中国四川省蝇科Muscidae秽蝇亚科Coenosiinae池蝇族Limnophorini池蝇属Limnophora Robineau-Desvoidy,1830的研究概况。迄今全世界已知该属有298个种的学名,中国已知62种,占20.81%;四川已知14种,占我国已知种的22.58%,其中分布于东洋区和古北区的有5种,东洋区的2种,四川特有种7种,分别占四川已知种的35.71%、14.29%和50%;在四川已知的14种中,近年鉴定命名的新种(含本文记述的1新种)有7种,占50%。编制了四川已知种检索表和名录,并对新种白头池蝇Limnophora leucocephala sp.nov.做了详细记述。新种模式标本存于中国科学院上海植物生理生态研究所昆虫博物馆。     

中国四川省阳蝇属一新种(双翅目:蝇科)

阳蝇属Helina R.-D.是蝇科Muscidae中仅次于棘蝇属Phaonia R.-D.的第2大属,初步统计全世界总计699种,我国已知有223种(含本文记述1新种),其中37种分布于世界各地,186种为中国特产种,也是我国专家自主鉴定命名的新种.本文记述了1新种,即眼毛长阳蝇Helina dasyodolychomma Feng,Ni et Ye,sp.nov..模式标本保存于北京军事医学科学院微生物流行病研究所医学昆虫标本馆.     

中国大广口蝇属分类研究(双翅目,广口蝇科)

以保存于英国自然历史博物馆和中国科学院动物研究所的标本为材料,对中国大广口蝇属Xenaspis Osten Sacken(双翅目:广口蝇科)进行了分类研究,确认目前中国已知下列4种:黄足大广口蝇X.flavipes Enderlein、台湾大广口蝇X.formosae Hendel、斑翅大广口蝇 X.maculipennis sp.nov.,硕大广口蝇X.pictipennis Walker.除详细记述其中的1新种外,还提供中国已知种类的分种检索表及其有关特征图.     

A homozygous female hemophilia A

BACKGROUND:

Hemophilia A (HA), being an X-linked recessive disorder, females are rarely affected, although they can be carriers.

AIMS:

To study the mutation in F8 gene in an extended family with a homozygous female HA.

MATERIALS AND METHODS:

All the seven affected members (six males and one female) were initially screened by Conformation Sensitive Gel Electrophoresis (CSGE) and direct DNA sequencing.

RESULTS:

A homozygous missense mutation c.1315G>A (p.Gly420Ser) was identified in exon 9 of F8 gene in homozygous state in the affected female born of 1° consanguinous marriage and in all the affected male members of the family. Her factor VIII levels was found to be 5.5%, vWF:Ag 120%.

CONCLUSION:

In India, as consanguineous marriages are very common in certain communities (up to 30%), the likelihood of encountering female hemophilia is higher, although this is the first case of HA out of 1600 hemophilia families registered in our Comprehensive Haemophilia Care Center. Genetic diagnosis in such cases is not necessary as all the male children will be affected and daughters obligatory carriers.     

A glucoside of urospermal A

The aerial parts of Urospermum picroides afforded, in addition to urospermal A a p-hydroxylphenyl acetate of a glucoside of urospermal A.     

Quadruplexes of human telomere DNA analogs designed to contain G:A:G:A,G:G:A:A,and A:A:A:A tetrads

Replacement of two to four guanines by adenines in the human telomere DNA repeat dG₃(TTAG₃)₃ did not hinder the formation of quadruplexes if the substitutions took place in the terminal tetrad bridged by the diagonal loop of the intramolecular antiparallel three‐tetrad scaffold, as proved by CD and PAGE in both Na⁺ and K⁺ solutions. Thermodynamic data showed that, in Na⁺ solution, the dG₃(TTAG₃)₃ quadruplex was destabilized, the least by the two G:A:G:A tetrads, the most by the G:G:A:A tetrad in which the adenosines replaced syn‐guanosines. In physiological K⁺ solution, the highest destabilization was caused by the 4A tetrad. In K⁺, only the unmodified dG₃(TTAG₃)₃ quadruplex rearranged into a K⁺‐dependent quadruplex form, none of the multiple adenine‐modified structures did so. This may imply biological consequences for nonrepaired A‐for‐G mutations. © 2010 Wiley Periodicals, Inc. Biopolymers 93: 880–886, 2010.     

Aminopeptidase A is angiotensinase A

Summary Quantitative histochemical measurements of aminopeptidase A (APA; E.C.3.4.11.7) were done kinetically in the kidney glomeruli of rat and mouse with an instrumental setup consisting of a microdensitometer and a computer-supported morphometric system. The histochemical demonstration of APA was carried out using the simultaneous azo coupling technique (purest-grade Fast Blue B as coupling agent and -l-glutamic acid-4-methoxy-2-naphthylamide as substrate). The methodological studies show that APA activity is calcium-ion-dependent and increases linearly with the thickness of the tissue section (3–12 m) and that the time-course of APA activity as determined by linear regression is linear only for the first 1 to 2 min of the reaction. — Kinetic measurements indicate a 40% decrease in APA activities when -l-glutamic acid-4-methoxy-2-naphthylamide (-l-Glu-MNA) is replaced by -l-aspartic acid-4-methoxy-2-naphthylamide. When -l-Glu-MNA is replaced with l-alanine-4-methoxy-2-naphthylamide, which is a substrate of aminopeptidase M (APM) only very low reaction rates are measurable (about 1.4% of those with -l-Glu-MNA). 100 and 130 mM NaCl in the incubation medium increase APA activities by approximately 16%–17%. — To clarify the functional importance of APA in the kidney, their activities were measured under the influence of angiotensins. The glomerulus was selected as the measuring site, for besides APA it contains no APM or other peptidases that could degrade angiotensins (the glomerular dipeptidyl peptidase IV is not inhibited by angiotensin II). Using the Lineweaver-Burk plot, we determined a K _m of 0.16 mM for the APA in rat glomeruli and 0.14 mM in mouse glomeruli. The V _max in mouse glomeruli is 1.6 times higher than in rat glomeruli. Ang iotensin I, II and III competitively inhibit APA in the rat and mouse glomeruli. — With quantitative histochemical techniques it was possible to show that APA is equivalent to angiotensinase A (splitting off the N-terminal aspartic acid from angiotensin I and II).Supported by the Deutsche Forschungsgemeinschaft (SFB 105)     

关于一个“基细胞”的疑问

有或没有基细胞是毛鞘藻属(Bulbochaets)与枝鞘藻属(Oedocladium)的区别之一。这里叙述了Mrozinska在其专著(1985)中,将Oedocladium indicum Kama附图(即模式图)上的一个基细胞错误地移置到Oe.PrescottiiIslam上去的情况。     

关于一个"基细胞"的疑问

有或没有基细胞是毛鞘藻属与枝鞘藻属的区别之一。这里叙述了Ｍｒｏｚｉｎｓｋａ在其专著中,将Ｏｅｄｏｃｌａｄｉｕｍ ｉｎｄｉｃｕｍ Ｋａｍａｔ附图（即模式图）上的一个基细胞错误地移置到Ｏｅ．ｐｒｅｓｃｏｔｔｉｉ Ｉｓｌａｍ上去的情况。