No abstract available.
Classification* ; Ecology* ; Spiders* ; Tetranychidae*

No abstract available.
Citrus* ; Hypersensitivity* ; Mites* ; Spiders* ; Tetranychidae*

BACKGROUND: Specified clinical observations regarding skin changes in viral hepatitis have not yet been accomplished in Korea, especially in view of serotypes. OBJECTIVE: This study was conducted to identify various cutaneous manifestations of viral hepatitis according to viral serotypes and the stages of the disease. METHODS: We performed a clinical observation of cutaneous manifestations in 450 patients who were diagnosed with viral hepatitis. RESULTS: 1. Cutaneous manifestations were found in 383(85.1%) patients. Patients with a longer duration seemed to have skin lesions more frequently. 2. The frequency of cutaneous manifestations was highest in HAV(94.4%) and HBV(84.9%) serotypes. The most common cutaneous manifestation was pruritus(32.4%) in all studied subjects. In HBV hepatitic patients, the most common cutaneous manifestation was pruritus(35.4%), in HCV hepatitic patients, vasculitic purpura(74.5%), in HAV hepatitic patients, urticaria(88.8%), in the hepatitic patients with the mixed form, spider angioma(30.2%) and vasculitic purpura(30.2%). 3. Urticarial lesions in non-HCV hepatitis were of the lymphocytic vasculitis type but HCV hepatitis was associated with neutrophilic vasculitis. The purpuric lesions with HCV hepatitis were of the neutrophilic vasculitis type while lymphocytic vasculitis was present in non-HCV hepatitis. 4. The most severe pruritus was present in HBV hepatitic patients. CONCLUSION: The cutaneous manifestations in viral hepatitis have different clinical features depending on the viral types.
Hepatitis* ; Humans ; Korea ; Neutrophils ; Pruritus ; Skin ; Spiders ; Vasculitis

To study the effect of physiological conditions on spidroins, we analyzed NTR1SR2CT module secondary structure, aggregation and silk-formation influenced by different salts (in different concentration intervals). According to the full-length Araneus ventricosus MiSp sequence, NTR1SR2CT module was constructed and expressed in Escherichia coli BL21 (DE3), and the recombinant proteins were purified by denaturation method mediated by 8 mol/L urea. Random coil and helix are the main secondary structures of NTR1SR2CT and could be induced into beta-sheet by drying natively and lyophilization, where methanol can be used as a promoter. Furthermore, potassium and phosphate cations can cause significant NTR1SR2CT protein aggregation and silk-formation. The results could be a basis for the determination of silk-formation mechanism, and also useful for industrialized generation of high performance spider silk-like fibers.
Animals ; Fibroins ; chemistry ; Protein Structure, Secondary ; Salts ; chemistry ; Spiders

Cutis marmorata telangiectatica congenita, which was first described by Van Lehuizen in 1922, is characterized by the presence at birth of a persistent cut;is marmorata pattern, phlebectasia, spider nevus-like telangiectasia, and areas of ulceration and steady improvernent with time. We reported a case of cutis mar.morata telangiectatica. congenita occuring in a 70 days old female infant showing the reticulated mottling and atrophy of the skin on the both lower extremites, right upper extremity, abdomen and buttock muscle weakening of right upper extremity and left lower extremity compare with the opposite side. Skin lesions were much improved during the observation period of 10 months without any other specific treatment except hermiatrophy of right upper extremity.
Abdomen ; Atrophy ; Buttocks ; Female ; Humans ; Infant ; Lower Extremity ; Parturition ; Skin ; Spiders ; Telangiectasis ; Ulcer ; Upper Extremity

In Korea, a total of 44 families, 217 genus, and 631 species of spiders are reported. However there are no spiders having noxious venom such as Latrodectus sp. or Loxoscles sp. Because of this, there have been no reported serious medical problems due to spider bites in Korea up to now. Paracoelotes spinivulva is a spider belonging to Family Amaurobiidae and Genus Paracoelotes. It is characteristically distributed in Korea and some regions of Japan, China, and Russia. A 46-year-old man presented with two painful, erythematous papules on the left index finger tip. He was bitten by a spider three days prior to the visit. Punch biopsy was done from the bite site. Although spider bites may be relatively common, there is only one official report of a spider bite in Korea. Herein, we report a case of a spider bite by a indigenous spider, Paracoelotes spinivulva.
Arachnidism ; Biopsy ; Bites and Stings ; China ; Fingers ; Humans ; Japan ; Korea ; Middle Aged ; Russia ; Spiders ; Venoms

A total of 631 species of spiders have been reported in Korea. However, there are no spiders with noxious venom such as Latrodectus sp. Because of this, to date, no serious medical problems due to spider bites have been reported in Korea, and only two cases of spider bite were officially reported. However, as the number of earning spiders from other countries is increased, the number of cases of spider bite has also shown a recent increase. A 17-year-old man presented with numbness of both extremities after being bitten by a spider which he had as a pet. The spider is called an Indian ornamental tree spider (Poecilotheria regalis sp.), one kind of tarantula species. Herein, we report on a case of a spider bite by a tarantula.
Adolescent ; Extremities ; Humans ; Hypesthesia ; Korea ; Spider Bites* ; Spider Venoms ; Spiders ; Venoms

Due to its special sequence structure, spider silk protein has unique physical and chemical properties, mechanical properties and excellent biological properties. With the expansion of the application value of spider silk in many fields as a functional material, progress has been made in the studies on the expression of recombinant spider silk proteins through many host systems by gene recombinant techniques. Recombinant spider silk proteins can be processed into high performance fibers, and a wide range of nonfibrous morphologies. Moreover, for their excellent biocompatibility and low immune response they are ideal for biomedical applications. Here we review the process and mechanism of preparation in vitro, chemistry and genetic engineering modification on recombinant spider silk protein.
Animals ; Arthropod Proteins ; chemistry ; Protein Engineering ; Recombinant Proteins ; chemistry ; Silk ; chemistry ; Spiders

BACKGROUND: Recent ad vances and innovation in laser technology encourages us to learn and use it experimentally and clinically. The pulsed dye laser(Candela SPTL-1) is a flashlamp excited dye laser, using the princ ples of selective photothermolysis that targets the abnormal microvascu lature of cutaneous lesions while sparing adjacent structures including the epidermis. The laseemits a 585nm wavelength, and has a pulse duration of 450 usec. It is now being widely used in the treatment of vascular diseases in the dermatology field. OBJECTIVE & METHOD : Buring the period of about 3 years from August 1994 to March 1992, at the out patient clinin of Department of Dermatology of Yonsei University. 252 patients who were treated with SPTL was analyzed to evaluate the clinical effects of the pulsed dye laser. Patient di@st.ributition f the cutaneous vascular lesions included 1fil pat.ients with nevui flammeus, 68 with telangcetasia, 15 with spider angima, 5 with strawberry hemangiona and 2 with cavernous hemangior ia. RESULTS: The results and summarized as follows : 1. Nevus flammeus 4b.7% of early childhood, 41.5% of late childhood and 47.3% of adults showed excellent or good results. 2. Telangiectasia 78.1% of patients she wed excellent or good results. 3. Spider angioma 66.7% of patients she wed excellent or good results. 4. Strawberry hemangioma and cavernous hemangioma Most, of the patients,howed fair or poor results. 5. Complications included hyperpigmentation(26.5%), hypopigmentation(1.6%) and atrophic scar(4.5% ). CONCLUSION: Our experince with pulsed dye laser during the last 3 years revealed that it was superior in treating vascular disease than other existing lasers.
Adult ; Dermatology ; Epidermis ; Fragaria ; Hemangioma ; Hemangioma, Cavernous ; Humans ; Lasers, Dye* ; Port-Wine Stain ; Spiders ; Telangiectasis ; Vascular Diseases

Background and objective: The two-spotted spider mite (Tetranychus urticae, TSM) is the most common mite infesting fruit leaves and herbaceous plants. Recent investigations have revealed that these mites play an important role in the development of asthma and rhinitis in apple farmers and exposed adults. The aim of this study is to evaluate sensitization to TSM in children living around pear orchards and its relationship with prevalence of allergic diseases. Subjects and methods: A total of 2,584 children living around pear orchards was recruited for this study. The subjects responded to a questionnaire, and underwent skin-prick testing to common inhalant allergens including TSM. RESULTS: The prevalence of asthma based on the questionnaire was 6.9% in 7 to 12-year-old subjects and 6.4% 13 to 18-year-old subjects. The prevalence of chronic rhinitis based on the questionnaire was higher in subjects 13-18 years old than in those 7-12 years old (24.8% vs. 21.2%). On the skin prick tests, the most common sensitizing indoor allergen was D. pteronyssinus (28.3%), followed by D. farinae (27.2%), T. putrescentiae (13.5%), and cockroach (10.9%). The sensitization rate to TSM was higher in the older children than in the younger ones (12.2% vs. 6.0%). While sensitization to TSM was not associated with prevalence of asthma among the younger children, the prevalence of asthma was higher in the older children sensitized to TSM than in those without sensitization (8.5% vs. 5.5%). However, the sensitization to TSM was not associated with the prevalence of chronic rhinitis in both groups. CONCLUSION: TSM is a common sensitizing allergen in children living around pear orchards, and the sensitization to TSM is significantly associated with the prevalence of asthma in older children.
Adolescent ; Adult ; Allergens ; Asthma ; Child* ; Cockroaches ; Fruit ; Humans ; Hypersensitivity* ; Mites ; Prevalence ; Pyrus* ; Rhinitis ; Skin ; Spiders* ; Tetranychidae* ; Surveys and Questionnaires