伊朗吉丁虫科昆虫记述(鞘翅目:吉丁虫科)

本文记述了伊朗不同地区鞘翅目吉丁虫科昆虫(Buprestidae)的一些种类和分布.共采集和鉴定吉丁虫科昆虫18种,隶属4亚科(Buprestinae,Chrysochroinae,Julodinae,Polycestinae)6属(Agrilus,Anthaxia,Psiloptera,Julodis,Acmaeodera,Acmaeoderella),并报道了部分种类的寄主植物.     

Effect of partition coefficient on microsegregation during solidification of aluminium alloys

In the modeling of microsegregation, the partition coefficient is usually calculated using data from the equilibrium phase diagrams. The aim of this study was to experimentally and theoretically analyze the partition coefficient in binary aluminum-copper alloys. The samples were analyzed by differential thermal analysis (DTA), which were melted and quenched from different temperatures during solidification. The mass fraction and composition of phases were measured by image processing and scanning electron microscopy (SEM) equipped with an energy-dispersive X-ray spectroscopy (EDS) unit. These data were used to calculate as the experimental partition coefficients with four different methods. The experimental and equilibrium partition coefficients were used to model the concentration profile in the primary phase. The modeling results show that the profiles calculated by the experimental partition coefficients are more consistent with the experimental profiles, compared to those calculated using the equilibrium partition coefficients.     

伊朗伊斯法罕地区的步甲科（鞘翅目）记述

步行虫（鞘翅目：步甲科）作为强劲的捕食者,对农业害虫和森林害虫的生态学控制起着举足轻重的作用.本文研究了伊朗中部伊斯法罕地区的有益步行虫,共收集确定了42个种与亚种,来自7个亚科Broscinae、Carabinae、Cicindelinae、Harpalinae、Nebriinae和Pterostichinae.这其中有6种是伊朗区系的新记录种,分别是〖WTBX〗Cephalota 〖WTBZ〗(〖WTBX〗Taenidia〖WTBZ〗) 〖WTBX〗circumdata cappadocica 〖WTBZ〗Franzen,〖WTBX〗Lophyridia concolor concolor 〖WTBZ〗Dejean,〖WTBX〗Lophyridia littoralis mandli 〖WTBZ〗Mandl,〖WTBX〗Ophonus 〖WTBZ〗(s.str.) 〖WTBX〗cribricollis 〖WTBZ〗(Dejean),〖WTBX〗Pachycarus 〖WTBZ〗(〖WTBX〗Paramystropterus〖WTBZ〗)〖WTBX〗 bravipennis 〖WTBZ〗Chaudoir和 〖WTBX〗Cymindis 〖WTBZ〗(s.str.) 〖WTBX〗scapularis 〖WTBZ〗Schaum.     

The ubiquitin-proteasome system and chromosome 17 in cerebellar granule cells and medulloblastoma subgroups

Chromosome 17 abnormalities are often observed in medulloblastomas (MBs), particularly those classified in the consensus Groups 3 and 4. Herein we review MB signature genes associated with chromosome 17 and the relationship of these signature genes to the ubiquitin-proteasome system. While clinical investigators have not focused on the ubiquitin-proteasome system in relation to MB, a substantial amount of data on the topic has been hidden in the form of supplemental datasets of gene expression. A supplemental dataset associated with the Thompson classification of MBs shows that a subgroup of MB with 17p deletions is characterized by reduced expression of genes for several core particle subunits of the beta ring of the proteasome (β1, β4, β5, β7). One of these genes (PSMB6, the gene for the β1 subunit) is located on chromosome 17, near the telomeric end of 17p. By comparison, in the WNT group of MBs only one core proteasome subunit, β6, associated with loss of a gene (PSMB1) on chromosome 6, was down-regulated in this dataset. The MB subgroups with the worst prognosis have a significant association with chromosome 17 abnormalities and irregularities of APC/C cyclosome genes. We conclude that the expression of proteasome subunit genes and genes for ubiquitin ligases can contribute to prognostic classification of MBs. The therapeutic value of targeting proteasome subunits and ubiquitin ligases in the various subgroups of MB remains to be determined separately for each classification of MB.     

Prolactin inducible protein in cancer, fertility and immunoregulation: structure, function and its clinical implications

Prolactin inducible protein (PIP) is a 17- kDa single polypeptide chain, known by various names due to its versatile nature and function in human reproductive and immunological systems. It is expressed in several exocrine tissues such as the lacrimal, salivary, and sweat glands. Its expression is up regulated by prolactin and androgens, and estrogens down regulate it. Due to its over-expression in metastatic breast and prostate cancer, presently PIP is considered as a prognostic biomarker. Moreover, its aspartyl-proteinase nature suggests its role in tumor progression. PIP has unique features because it is small in size and plays multiple important functions. Its ability to bind potentially with CD4-T cell receptor, immunoglobulin G (IgG), actin, zinc α2-glycoprotein (ZAG), fibronectin and enamel pellicle, reveals its important biological functions. This is the first comprehensive review on the structure and functional analysis of PIP and its clinical applications. Received 04 August 2008; received after revision 09 September 2008; accepted 15 September 2008     

Persica qeshmensis gen. nov. sp. nov from the Persian Gulf (Platyhelminthes: Polycladida: Acotylea), with remarks on reproductive structures

A new genus of acotylean polyclad, Persica qeshmensis gen. nov. sp. nov. (Acotylea, Pleioplanidae), was collected from intertidal rocky shores of the Northern Persian Gulf, Iran. The genus Persica is established on the presence of small tentacles; tentacular and cerebral eyes; spermiducal bulbs; true seminal vesicle; prostatic vesicle of atomata-type; muscular coiled ejaculatory duct, provided with a stylet, absence of a vagina bulbosa or Lang’s vesicle. Persica qeshmensis is characterised by a sandy beige to light brown background colour, with pale brown microdots, light grey ventral body surface, coiled ejaculatory duct embedded in parenchymatous cell mass, elongated sigmoid stylet, a well-developed penis sheath located in a small male atrium, and with a non-muscular blind chamber extending anteriad from the vagina to the level of the genital sucker.

http://zoobank.org/urn:lsid:zoobank.org:pub:FAA7AA0A-6954-47D0-A5B2-1A2EC04050C3