• Title/Summary/Keyword: Integumentary system

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Ultrastructure of the Integumentary System of the Amberjack, Seriola dumerili (Teleostei: Carangidae), from Korea (잿방어, Seriola dumerili 피부계의 전자현미경적 구조)

  • Jin, Young Guk;Lee, Jae Woo;Lee, Jung Sick
    • Korean Journal of Ichthyology
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    • v.17 no.4
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    • pp.248-254
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    • 2005
  • Integumentary structure of the amberjack, Seriola dumerili, was examined by light and transmission electron microscopy. Integument of the amberjack consists of epidermal and dermal layers. The epidermal thickness is about $28.32{\mu}m$. The epidermal layer could be classified into superficial, intermediate, and basal layers by morphology and position of the supporting cells. Secretory cells of the epidermal layer were classified into mucous cells and club cells in the amberjack. Mucous cells contained acidic mucous and were alcian-blue positive with AB-PAS (pH 2.5) reaction. The club cells contained well-developed rough endoplasmic reticula and large central vacuole. Also, filament-rich cells were identified in the epidermal layer. The dermal layer consists mainly of collagenous fiber, and it contains fibrocytes and pigment cells. The cytoplasm of fibrocyte had a well-developed rough endoplasmic reticulum. The pigment cells contained electron-dense melanin granules.

Survival and Histological Change of Integumentary System of the Juvenile Sea Cucumber, Apostichopus japonicus Exposed to Various Salinity Concentrations (염분 농도에 따른 어린 돌기해삼, Apostichopus japonicus의 생존 및 피부계의 조직학적 변화)

  • Kim, Tae-Ik;Park, Min-Woo;Cho, Jae-Kwon;Son, Maeng-Hyun;Jin, Young-Guk
    • Journal of Fisheries and Marine Sciences Education
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    • v.25 no.6
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    • pp.1360-1365
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    • 2013
  • Juvenile sea cucumber, Apostichopus japonicus(wet weight $1.0{\pm}0.2g$, n=250) acclimated to environmental conditions($17^{\circ}C$, 33 psu) during 4 weeks for observation of survival and structural variation of integumentary system according to various salinity concentration. After that, it was exposed 0, 5, 10, 15, 20, 25, 30, 35, 40 psu in 96h, and recovered during 7 days. In this results, The 96-h lethal concentration(LC50) for sea cucumber was a salinity of 21.05 psu. Integumentary system of the sea cucumber exposed to below the salinity of 20 psu mainly observed thickness reduction of epidermal layer, nucleus condensation of epithelial cells, decreased of mucous cells and loose arrangement of connective tissue in dermal layer. Integumentary system of the sea cucumber exposed a salinity of 40 psu mainly observed nucleus hypertrophy of epithelial cells, increase of mucous cells and tight arrangement of connective tissue in dermal layer. Also, observed secretory cells showing the alcian blue(pH 2.5) positive. During 96-h exposure, this cells decreased after increase below the salinity of 20 psu but increased in the salinity of 40 psu compared with 25-35 psu.

Ultrastructure and Histochemistry of the Integumentary System of the Chub Mackerel, Scomber japonicus (Teleostei: Scombridae) (고등어(Scomber japonicus) 피부계의 미세구조 및 조직화학)

  • Jin, Young Guk;Lee, Jung Sick
    • Korean Journal of Ichthyology
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    • v.17 no.2
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    • pp.98-104
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    • 2005
  • Integumentary structures of the chub mackerel (Scomber japonicus) were examined by light and transmission electron microscopy. The integument of the fish was composed of epidermal and dermal layers. The epidermal thickness is about $20{\mu}m$ in TL 35~40 cm fish. The epidermal layer could be classified into superficial, intermediate, and basal layers by morphology and position of the supporting cells. The epidermal layer also possessed mucous cells, club cells and chloride cells. The area of secretory cells, including mucous and club cells, is about 23% of the epidermal layer. The mucous materials were identified as sulfated glycoprotein, neutral and acid in nature. Club cells had a large central vacuole and rough endoplasmic reticula in the cytoplasm. Chloride cells had numerous tubular mitochondria in the cytoplasm. The dermal layer consists mainly of collagenous fiber, and it contains fibrocytes, pigment cells and cycloid scales.

Ultrastructure and Histochemistry on the Integumentary System of the Grass Puffer, Takifugu niphobles (Teleostei: Tetraodontidae) (복섬, Takifugu niphobles 피부계의 미세구조 및 조직화학적 특징)

  • An, Chul Min;Kim, Jae Won;Jin, Young Guk;Park, Jung Jun;Lee, Jung Sick
    • Korean Journal of Ichthyology
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    • v.19 no.3
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    • pp.201-209
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    • 2007
  • The fine structures and histochemical features on the integumentary system of the grass puffer, Takifugu niphobles were examined by means of the light and transmission electron microscopy. Integumentary surface of the grass puffer showed irregular folds in light microscope. The folds of the ventral region are more pronounced than those in the dorsal region. Integumentary system is composed of outer epidermal layer and inner dermal layer. The stratified epidermal layer consists of epithelia, mucous cells, club cells, granular cells and multivacuolar gland. Epithelial cells are classified into superficial, intermediated and basal cell, and free surface of superficial cell is covered with microridges. Glands of the epidermal layer are divided into unicellular and multicellular gland. Mucous cells of multicellular gland contains mucosal materials of neutral glycoprotein. Multivacuolar gland is composed of numerous vacuole cells of about $20{\mu}m$ in axial diameter. Vacuole cells contains a large central vacuole and are connected to another by many desmosomes. The mucous glands and multivacuolar glands are more abundant in ventral region than dorsal integument. The thickness of dermis is more three to five times than epidermis in ventral integument. The collagen fibers, fibrocytes, nerve cells, basal plate of spine and chromatophore are observed in the dermal layer of compact connective tissue.

Fine Structure of the Integumentary Cuticle and Epidermis of Perinereis aibuhitensis (Polychaeta: Nereidae) (두토막눈썹참갯지렁이 (Perinereis aibuhitensis) 피부계의 미세구조)

  • LEE Jung Sick;LIM Hyun-Sig
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.33 no.3
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    • pp.257-261
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    • 2000
  • Integumentary system of the polychaete, Perinezeis aibuhitensis was consisted cuticular, epidermal and dermal layers. Excretory pores opened in cuticular layer, which is covered with epicuticular projections. The hemidesmosomes were observed between supporting cell and basal area of cuticular layer. The epidermal layer was consisted supporting cells and unicellular glands. Supporting cell was relatively larger than the other neighbouring cells, and the nucleus had one to two nucleolus. Cytoplasm of the supporting cell had well-developed intracellular organs such as tonofilaments, mitochondria, rough endoplasmic reticula, free ribosomes and pigment granules of electron dense. The gland cells were reacted with blue in AB-PAS, and classified into the three types such as ${\alpha},\;{\beta}\;and\;{\gamma}$ from the transmission electron microscopic observation. Type ${\alpha}$ gland cell was ovoid and the cytoplasm had well-developed tonofilaments and membrane bounded secretory granules of $0.8{\~}1.5 {\mu}m$ in diameter. Type ${\beta}$ gland cell had a large vacuole and secretory granules of $0.5{\~}0.8 {\mu}m$, which scattered evenly in the cytoplasm. Type ${\gamma}$ gland cell had well-developed endoplasmic reticulum, Golgi auparatus and secretory granules of $0.2{\~}0.3 {\mu}m$ in diameter. The electron density of this granules was the highest among the granules.

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Ultrastructure and Histochemistry on the Integumentary System of the Stone Flounder, Kareius bicoloratus (Teleostei: Pleuronectidae) (돌가자미 (Kareius bicoloratus) 피부계의 미세구조 및 조직화학)

  • Lee, Jung-Sick;Jin, Young-Guk
    • Applied Microscopy
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    • v.31 no.4
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    • pp.325-331
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    • 2001
  • Integumentary structures of the stone flounder, Karefus bicoloratus were examined by means of the light and transmission electron microscopy. Stratified epidermal layer consists of supporting cells, unicellular glands and granular cells. The epidermal layer could be classified into superficial, intermediated and basal layer by morphology and structure of the supporting cells . The cytoplasm of supporting cells is divided into cortex and medullar part. In the cortex microfilaments are well developed. Mucous cells of unicellular gland were observed in the superficial and intermediated layer of the epidermis. The mucous materials were identified as glycoprotein of neutral and carboxylated mucosubstance by histochemical methods. Club cell has well developed smooth endoplasmic reticula and Golgi complex in the cytoplasm. Granular cells were observed in the intermediated and basal layer, and the cytoplasm is occupied with membrane-bounded granules of electron dense. Three types of pigment cells could be distinguished with electron density of cytoplasmic inclusions. Nerve myelins were observed near the pigment cells.

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Ultrastructure and Histochemistry on the Integumentary System of the Rockfish, Sebastiscus tertius (Teleostei: Scorpaenidae) (붉은쏨뱅이 (Sebastiscus tertius) 피부계의 미세구조 및 조직화학적 특징)

  • Baek, Jae-Min;Kim, Chul-Won;Lim, Sang-Gu;Lee, Jae-Bong;Lee, Jung-Sick
    • Applied Microscopy
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    • v.34 no.2
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    • pp.83-93
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    • 2004
  • Integumentary structures of the rockfish, Sebastiscus tertius were examined by means of the light and transmission electron microscopy. Stratified epidermal layer consists of supporting cells, unicellular glands, granular cells and mitochondria-rich cells. The epidermal layer could be classified into superficial, intermediate and basal layer by morphology and structure of the supporting cells. Mucous cells of unicellular gland were observed in the superficial and intermediate layer of the epidermis. The mucous materials were identified as acidic and carboxylated mucosubstance by histochemical methods. Club cell has well-developed central vacuole, rough endoplasmic reticula and Golgi complex in the cytoplasm. Granular cells were observed in the superficial layer and contained numerous granules of high electron density. Mitochondria-rich cells are characterized by well-developed microfilaments in cortex and numerous tubular mitochondria in medullar cytoplasm. Three types of pigment cells in the dermal layer could be distinguished with electron density of cytoplasmic inclusions.

Integumentary Ultrastructure of the Blenny, Pholis nebulosa (Teleostei: Pholidae) (베도라치 (Pholis nebulosa) 피부계의 미세구조)

  • LEE Jung Sick;An Cheul Min;HUH Sung-Hoi
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.33 no.2
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    • pp.148-152
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    • 2000
  • To provide basic information on the integumentary system of the blenny, Pholis nebulosa, ultrastructures of epidermal and dermal layer were examined by means of the light and transmission electron microscope. The skin of the blenny consisted of epidermal and dermal layer. Epidermal layer consisted of supporting cell and unicellular gland. The supporting cells were classified into superficial cell, intermediated cell and basal cell, and the gland cells were classified into mucous secretory cell and club cell. The cytoplasm of supporting cells was divided into cortex and medullar part. In the cortex and medullar part, microfilaments and cell organelles were well developed, respectively. Superficial cell of epidermal layer was cuboidal and contained nucleus of horseshoe shape. Intermediated cell had a nucleus of irregular form and the electron density was higher than the other supporting cells, Basal cell was columnar, but nucleus was situated in the upper cytoplasm. Cell organelles of the basal cell were poor than the other supporting cells, but membrane interdigitations were well developed. The cytoplasm of mucous secretory cell had a well-developed ovoid secretory granules, which reacted to red with AB-PAS reaction. The club cell had a we31-developed round secretory granules and endoplasmic reticulum. figment cells were classified into two type. The one contained pigment granules of electron dense, and the other contained reflecting platelets. The cytoplasm of fibrocyte had n well developed rough endoplasmic reticulum.

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A Study of Skin characteristics of the Chinese and Korean people in their 20's (20대 한국인과 중국인의 피부특성 연구)

  • Shim, Seung-Bo;Chun, Yong-Jin
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.1
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    • pp.581-584
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    • 2014
  • Skin is the soft outer covering of vertebrates. In mammals, the skin is the largest organ of the integumentary system made up of multiple layers of ectodermal tissue, and guards the underlying muscles, bones, ligaments and internal organs. There is a difference of the physiological function and anatomical structure of the skin, as body parts, sex, age, race and nutritional status. In this study, we measured the moisturizing ability of the skin of the 20s Chinese and Korea in Korean. We found that the skin hydrating of Chinese is significantly higher than Korean and TEWL of Chinese is lower than Korean. We measured the moisturizing ability of both 20s Chinese and Korean. As result, the moisturizing ability of 20s Chinese is better than Korean.

A case report of reduced papilledema in a Vogt-Koyanagi-Harada syndrome patient with herbal medicine (보그트-고야나기-하라다병 환자에서 한약 단독치료로 시신경유두 부종이 감소한 치험 1례)

  • Lee, Dong-Jin;Kwon, Kang;Seo, Hyung-Sik
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.27 no.2
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    • pp.83-88
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    • 2014
  • Objectives : Vogt-Koyanagi-Harada(VKH) syndrome is a multisystem autoimmune disease characterized by its affects on pigmented tissues in the ocular, auditory, integumentary and central nervous system. This case is to report a decreased optical disc swelling in VKH patient treated only with herbal medication. Methods : A 56-year-old male patient with VKH experienced headache and numbness during 7 months of steroid treatment. He visited our clinic and was administered Haeulsoyo-san (解鬱逍遙散) three times a day for a month. No other oriental or western treatments were included. Result & Conclusions : Patient didn't complain any discomfort during the treatment. Significantly decreased optical disc swelling was confirmed by taking fundus photo. This is the first case of KVH to be reported in Korean medicine society.