No abstract available.
Evoked Potentials, Auditory, Brain Stem* ; Humans ; Infant, Newborn*

Hantaviruses are negative-strand RNA viruses that contain three segmented genome and belong to the family Bunyaviridae. Due to such an unique structure of segmented RNA genome, these viruses have a possibility to produce reassortant that have genomic sets mixed with different segments originated from both parental virus during the genetic interaction. To investigate whether this phenomenon occurs actually, Hantaan virus (HTN) could be coinfected with Seoul virus (SEO) to Vero-E6 cell. And also, HTN could be coinfected with Prospect hill virus (PH) to investigate the rate of genetic reassortment according to the genetic distance among the HTN, SEO and PH viruses. As a available method to differentiate the reassortant, we used the multiplex RT-PCR that detect and differentiate the serotype of hantaviruses in mixed infection. Each progeny clone could be screened by multiplex RT-PCR. So, we have constructed the multiplex RT-PCR system that separated amplifications for each segment of Hantaviruses. Our multiplex RT-PCR system provide sensitive, specific and simplified tools for the rapid differentiation of hantaviruses serotypes and also the diagnosis of Hantavirus infections.
Bunyaviridae ; Clone Cells ; Coinfection ; Diagnosis ; Genome ; Hantaan virus ; Hantavirus Infections ; Hantavirus* ; Humans ; Hydrogen-Ion Concentration ; Parents ; RNA ; RNA Viruses ; Seoul virus ; Serotyping*

No abstract available.
Female* ; Fetus* ; Humans ; Male*

Prospect Hill virus (PHV) is related antigenically but distinct to Hantaan virus. As a member of genus Hantavirus, PHV has three segmented RNA genome. Among these segments, Small segment(S) encodes nucleocapsid protein (NP) as structural protein and also may do functional nonstructural protein(NSs). We performed in vitro transcription to produce vRNA of PHV S genome. For the first step of in vitro transcription of S genome of PHV, the S RNA segrnent which is 1,675 nucleotides long was amplified by RT-PCR using PCR primers built according to cDNA sequence of PHV S genome. Next, a new PCR primer appended above downstream primer to T7 phage promoter sequence was reconstructed to obtain PCR product containing T7 promoter. Then another PCR was performed. Using this PCR product as the template, in vitro run-off transcription without cloning by transcriptional vector was performed to obtain viral- sense RNA transcript. Thereafter, the size of transcript was assessed by running on formaldehyde agarose gels. Since the transcription reactants contain a-S UTP, the transcript is detectable by autoradiography. The transcript was also detectable by northern hybridization with a-P dCTP- labelled PHV amplicon probe (319 bp) and the initiation start point of run-off transcription was also determined by primer extention analysis. Our data indicate that the in vitro transcript could be produced from the PCR product amplified by PCR primer containing T7 phage promoter without cloning into a phage transcription vector.
Autoradiography ; Bacteriophage T7 ; Bacteriophages ; Clone Cells ; Cloning, Organism ; DNA, Complementary ; Formaldehyde ; Gels ; Genome* ; Hantaan virus ; Hantavirus ; Nucleocapsid Proteins ; Nucleotides ; Polymerase Chain Reaction ; RNA ; Running ; Sepharose ; Uridine Triphosphate ; Viruses*

No abstract available.
Base Sequence* ; DNA, Complementary* ; Hantaan virus*

Prolactin is elevated in the serum of patients with cervical carcimomas. It is suggested that such edtopically secreteted prolactin may be a potential marker for detecting early occult tumors or gauging the effectiveness of therapy for human cervicla carcinoma. We have immunohistochemical study to investigate the presence or absence of prolactin in 16 cases of nrmal cervical tissues and 26 cases of neoplastic formalin fixed cervical tissues. The results were as follows. 1. All cases of 10 normal uterine cervical tissues and all cases of 5 squamous metaplasia of the cervix revealed positive reaction to prolactin antisera. 2. One case of four moderate dyplasia of the cervix revealed positive reacion to prolactin antisera. 3. One case of five squamous cell carcinoma in situof the cervix revealed positive reaction to prolactin antisera. 4. All cases of 10 keratinizing sqyamous cell carcinoma of the cervix revealed positive reaction to prolactin antisera, but only 1 case non-keratinizing sqyamous cell carcinoma of the cervix revealed positive reaction to prolactin antisera. The results are suggested that prolactin may play a some role in the developement and growth of the cervical carcinoma. But further stydy of the biologic actions of prolactin in many cervical tissues is warranted.
Carcinoma, Squamous Cell ; Cervix Uteri ; Female ; Formaldehyde ; Humans ; Immune Sera ; Metaplasia ; Prolactin*

No abstract available.
Kidney*

No abstract available.
Hypokalemic Periodic Paralysis*

No abstract available.
Biopsy* ; Child* ; Humans

Three cases of necrotizing vasculitis clinically showing bullous skin lesions and histopathologically confirmed as leukocytoclastic vasculitis are reported. Compared with those of skin -limited non-bullous forms of cutaneous vasculitis, these cases showed relatively frequent abnormalities in urinalysis and required more aggresive corticosteriod therapy. Clinicians should be aware of the possible systemic involvements when the skin lesions are bullous in cutaneous necrotizing vasculitis.
Skin* ; Urinalysis ; Vasculitis*