• Journal of Sasang Constitutional Medicine
• /
• v.14 no.3
• /
• pp.97-113
• /
• 2002

Objective To study the effectiveness of Yuldahansotang against Allergic Contact Dermatitis, the change of cutaneous shape, histochemistry, immunohistochemistry and distribution of apoptotic cells was researched. materials and methods 4-month-old rats were divided into three groups of 10. One is a contrastive group which has applied Acetone olive oil only. Another is ACD group which has intentionally activated Allergic Contact Dermatitis by DNCB. And the other is YST group which has given medication of Yangkyuksanhawtang extract. Each group of mice were observed after 24, 48 and 72 hours. results 1. With the result of Contact hypersensitivity assay, YST group shows appreciably less ear swelling than ACD group. 2. Comparing YST and ACD groups to each other regarding general change of skin, YST group shows less hyperplasia of epidermis, less migration of inflammatory cells and less damage of epidermis than ACD group. 3. Regarding the change of collagen fiber, ACD group has appeared to be low in number of collagen fiber while YST shows similarity with the contrastive group. 4. In dermis YST group has showed lower number of mastocyte than ACD group and is granulated type. 5. In dermis YST group has showed less MAC-1,IL-1, $IL-2R-{\alpha}$, ICAM-1 and VCAM-1 than ACD group. 6. The distribution of apoptotic cells has appeared littler in YST group than in ACD 7. Among signal molecule of apoptosis Bcl-2 has distributed more in YST group than ACD group and Bax and Fas has distributed less in YST group than ACD group.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
• /
• v.18 no.1
• /
• pp.199-220
• /
• 2005

Objective : This study was performed to investigate the effects of Sophorae Radix and Coptidis Rhizoma-iontophoresis in allergic contact dermatitis. Methods : Contact hypersensitivity assay, video microscope, melanin-erythema levels, pH levels, hydration levels, WBC count, RBC count, neutrophil ratio, lymphocyte ratio and total IgE levels were measured. Results : At contact hypersensitivity assay, the right ear swellings in Sophorae Radix and Coptidis Rhizoma-iontophoresis group were decreased compared with control group, but have no statistical significance. At observation of skin morphologic change, many papules were seen in control group and keratins were seen in Sophorae Radix-iontophoresis group. At melanin levels, Sophorae Radix and Coptidis Rhizoma-iontophoresis groups showed no significant difference compared with control group. At pH levels, Sophorae Radix-iontophoresis group showed significant decreased with control group. At hydration levels, Sophorae Radix and Coptidis Rhizoma-iontophoreses groups showed to significant difference compared with control group. WBC count, RBC count and neutrophil ratio were significantly increased in Sophorae Radix and Coptidis Rhizoma-iontophoresis group compared with control group. Lymphocyte ratio and total IgE levels were significantly decreased in Sophorae Radix and Coptidis Rhizoma-iontophoresis groups compared with control group. At morphology of skin, inflammation was decreased and the thickness of epidermis was well preserved in Sophorae Radix and Coptidis Rhizoma-iontophoresis group. Conclusion : Sophorae Radix and Coptidis Rhizoma-iontophoresis had some anti-allergy, anti-inflammatory effects on allergic contact dermatitis, but had no effects on melanin-erythema levels, pH levels and hydration levels of skin.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
• /
• v.19 no.2
• /
• pp.59-70
• /
• 2006

Objective : This study was performed to investigate the Anti-Inflammatory Effects of WooBangHaeGiTang on the Allergic Contact dermatitis. Method : Contact hypersensitivity assay, video microscope, WBC count, RBU count, neutrophil ratio, lymphpcyte ratio and GOT & GPT were measurd. Result : 1. At Contact hypersensitivity Aasay, at 24 hours after Control group & Sample group showed appreciably more ear swelling than Normal group, at 48 hours after Control group showed more ear swelling than Normal group & Sample group, at 72 hours after Control group & Sample group showed more ear swelling than Normal group 2. Regarding the number of WBC, at 24 or 48 hours after There are no significant difference among Normal group, Control group. Sample group, at 72 hours after Sample group showed more WBC than Control group. 3. Regarding the number of RBC, at 24 hours after Control group showed more RBC than Normal group, at 48 hours after Control group & Sample group showed more RBC than Normal group. at 72 hours after Control group showed more RBC than Normal group. 4. Regarding the percentage of neutrophil in WBC, at 24 & 48 hours after Control group & Sample group showed higher percentage than Normal group. 5. Regarding the percentage of Lymphocyte in WBC, at 24 hours after Sample group showed lower percentage than Normal group, at 48 hours after Sample group & Control group showed lower percentage than Normal group. 6. Regarding the GOT & GPT in blood, the GOT & GPT are in Normal scale, so there are no Hepatotoxicity in Normal group, Control group, Sample group. Conclusions : According to above experiments, WooBangHaeGiTang have some anti allergy effects on allergic contact dermatitis.

• The Korea Journal of Herbology
• /
• v.27 no.5
• /
• pp.37-44
• /
• 2012

Objectives : The present study was undertaken to determine whether the ethanol extact of Citri Pericarpium (CP, Pericarp of Citrus unshiu Markovich, Rutaceae) is effective against atopic dermatitis according to it's storage period. Methods : To evaluate antiallergic effect of CP and OCP (Old Citri Pericarpium) evaluated in vivo their inhibitory effects against passive cutaenous anaphylaxis (PCA) reaction induced by IgE-antigen complex and scratching behaviors by compound 48/80. The Anti-atopic effects were measured by contact dermatitis, prurient animal model and PCA reaction. Contact dermatitis in mice as a model of the Type IV reaction caused by Oxazolone. Results : The results showed that anti-pruritus effects, analgesic effects of CP was depends on its hesperetin contents. And It also showed that keep longer in storage appeared to be higher in hesperetin contents. Both CP and OCP(Old CP) have a dose-dependent analgesic action in acetic acid induced writhing syndrome. OCP Potently inhibited PCA reaction in mice, although OCP weakly inhibited in long term contact dermatitis model in mice. Conclusions : These results suggest that the Proportional to the storage period, Citri Pericarpium possesses analgesic effects and anti-allergic effects.

• Biomolecules & Therapeutics
• /
• v.16 no.3
• /
• pp.237-242
• /
• 2008

The effect of Picrorrhiza Rhizoma (PR) aqueous extracts were evaluated on 2,4-dinitrofluorobenzene (DNFB)-induced contact dermatitis, type I allergic model. Contact dermatitis was induced by sensitization with dinitrophenyl-derivatized ovalbumin (DNP-OVA) and DNFB challenge as antigen. Three different concentrations of PR extracts (300,150 and 75mg/kg) were orally administered to DNP-OVA sensitization mice once a day for 7 days with reference materials; dexamethasone (15mg/kg, intraperitoneal treatment). End of 7 days oral administration of PR extracts or intraperitoneal treatment of dexamethasone, the changes on the edematous changes and scratching behavior were measured. Immediate after DNFB challenge on ear or paw of DNP-OVA sensitized mice, increases of ear and paw thicknesses and weights were detected with anterior ear skin (dermis to epidermis) thickness and paw scratching behavior increases. However, these DNFB-induced increases on ear and paw thicknesses, weights and scratching behaviors were decreased by treatment of all three different dosages of PR extracts and dexamethasone, respectively. In addition, the increases of anterior skin thicknesses were also dramatically inhibited by treatment of all three different dosages of PR extracts and dexamethasone at histopathological observations. The results obtained in this study suggest that oral treatment of PR extracts also has relatively favorable effects on allergic dermatitis.

• Korean Journal of Korean Medical Institute of Dermatology and Aesthetics
• /
• v.1 no.1
• /
• pp.16-40
• /
• 2005

Objective : To study the effectiveness of Yangkyuksanhawtang against Allergic Contact Dermatitis I observed the change of cutaneous shape, histochemistry, immunohistochemistry, and the distribution of apoptotic cells. materials and methods : I divided 4-month-old rats into three groups of 10, which are a contrastive group of having applied Acetone olive oil only, ACD group to have intentionally activated Allergic Contact Dermatitis by DNCB and YST group to give medication of Yangkyuksanhawtang extract. And I observed each group of mice after 24, 48 and 72 hours. results : 1. With the result of Contact hypersensitivity assay, YST group shows appreciably less ear swelling than ACD group. 2. Comparing YST and ACD groups to each other regarding general change of skin, YST group shows less hyperplasia of epidermis, less migration of inflammatory cells and less damage of epidermis than ACD group. 3. Regarding the change of collagen fiber, ACD group has appeared to be low in number of collagen fiber while YST shows similarity with the contrastive group. 4. In dermis YST group has showed lower number of mastocyte than ACD group and is granulated type. 5. In dermis YST group has showed less MAC-1, IL-1 , $IL-2R-\;{\alpha}$ G, ICAM-1 and VCAM-1 than ACD group. 6. The distribution of apoptotic cells has appeared littler in YST group than in ACD 7. Among signal molecule of apoptosis Bcl-2 has distributed more in YST group than ACD group and Bax and Fas has distributed less in YST group than ACD group.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
• /
• v.15 no.1
• /
• pp.76-95
• /
• 2002

Allergic rhinitis and allergic dermatitis are common allergic diseases. Galgeun-tang has been used for treating various diseases, which include allergic rhinitis and allergic dermatitis. Experimental sutdies have been done to research the anti-allergic effects of Galgeun-tang, Gamigalgeun-tang and Geomahwanggalgeun-tang. We have observed: the vascular permeability response induced by serotonin and histamine, the contact dermatitis response induced by picryl chloride, the delayed type hypersensitivity response to SRC, the mice paw edema induced by carrageenin, and the rectal temperature in febrile rats induced by endotoxin, as well as the writhing syndrome induced by $0.7{\%}$ acetic acid. The results were as follows: 1. In the vascular permeability response to intradermal serotonin and histamine, Galgeun-tang and Gamigalgeun-tang showed a significant inhibitory effect. However Geomahwanggalgeun-tang showed an insignificant inhibitory effect. 2. In the contact dermatitis response induced by picryl chloride, Galgeun-tang and Gamigalgeun-tang showed a signigicant inhibitory effect. However Geomahwanggalgeun-tang showed an insignificant inhibitory effect. 3. In the delayed type hypersensitivity response to SRC, Galgeun-tang, Gamigalgeun-tang and Geomahwanggalgeun-tang showed a significant inhibitory effect. 4. In the mice paw edema induced by carrageenin, Galgeun-tang and Gamigalgeun-tang showed a significant inhibitory effect. However Geomahwanggalgeun-tang showed an insignificant inhibitory effect. 5. In the rectal temperature in febrile rats induced by endotoxin, Galgeun-tang, Gamigalgeun-tang and Geomahwanggalgeun-tang showed a significant inhibitory effect. 6. In the writhing syndrome induced by a $0.7{\%}$ acetic acid solution. Galgeun-tang and Gamigalgeun-tang showed a significant inhibitory effect. However Geomahwanggalgeun-tang showed an insignificant inhibitory effect.

• Annals of Occupational and Environmental Medicine
• /
• v.34
• /
• pp.7.1-7.10
• /
• 2022

Background: Occupational skin diseases are skin conditions that occur or worsen in relation to work and known to be the second most common type of occupational disease affecting individuals in the United States. In Korea, epidemiological reports related to occupational skin diseases are rare. But, no cases of occupational contact dermatitis caused by welding and grinding work have been reported previously. Case presentation: Nine male workers working in the production department for liquefied natural gas (LNG) ships in Ulsan complained of erythematous papules/patches and itching in various areas of the body after welding and grinding work. The work environment monitoring report revealed that the amount of nickel dust exceeded the time weighted average (TWA) and poor local ventilation status. Based on the symptoms and the overall results of surveys, several tests, and work environment monitoring report, the 2 workers who had positive patch-test reactions to nickel were diagnosed with nickel dust-induced allergic contact dermatitis. The other 7 workers were diagnosed that there was a high probability that they had nickel dust-induced irritant contact dermatitis. The 2 workers who had nickel dust-induced allergic contact dermatitis were recommended to switch their jobs. Conclusions: Nickel is one of the most common cause of allergic contact dermatitis. In this case, the dust was assumed to be created by welding work with a high nickel content new welding rod and subsequent grinding work, and the concentration of this dust exceeded the time weighted average. Thus, it is thought that the nickel dust may have caused contact dermatitis through continuous contact with the workers' exposed skin in a poorly ventilated space. Currently, several domestic shipbuilding companies are manufacturing LNG tankers using a new construction method. Consequently, it is highly likely that similar cases will occur in the future, which makes this case report meaningful.

• Biomolecules & Therapeutics
• /
• v.31 no.4
• /
• pp.388-394
• /
• 2023

Nitric oxide (NO) is a signaling molecule that plays a crucial role in numerous cellular physiological processes. In the skin, NO is produced by keratinocytes, fibroblasts, endothelial cells, and immune cells and is involved in skin functions such as vasodilation, pigmentation, hair growth, wound healing, and immune responses. NO modulates both innate and adaptive immune responses. As a signaling molecule and cytotoxic effector, NO influences the function of immune cells and production of cytokines. NO is a key mediator that protects against or contributes to skin inflammation. Moreover, NO has been implicated in skin sensitization, a process underlying contact dermatitis. It modulates the function of dendritic cells and T cells, thereby affecting the immune response to allergens. NO also plays a role in contact dermatitis by inducing inflammation and tissue damage. NO-related chemicals, such as nitrofatty acids and nitric oxide synthase (NOS) inhibitors, have potential therapeutic applications in skin conditions, including allergic contact dermatitis (ACD) and irritant contact dermatitis (ICD). Further research is required to fully elucidate the therapeutic potential of NO-related chemicals and develop personalized treatment strategies for skin conditions.

• The Korean Journal of Food And Nutrition
• /
• v.28 no.5
• /
• pp.759-765
• /
• 2015

The effects of extracts from Lentinula edodes (L. edodes) and Aquilariae agallocha (A. agallocha) on the DNA damage response in ultraviolet A (UVA)-exposed HaCaT cells and on the allergic contact dermatitis caused by 2,4-dinitro-chlorobezene (DNCB) were investigated. When UVA-exposed cells were incubated for 24 hours in medium containing L. edodes or A. agallocha extract, the level of 8-OHdG and CPD decreased in a concentration-dependent manner. The combined treatment with both extracts potentiated the decrease in UVA-induced 8-OHdG and CPD levels as compared with those following treatment with a single extract. In addition, the two extracts showed preventive effects against the UVA-induced reduction in collagen levels. Furthermore, the blood levels of IgE, IL-6, and histamine decreased more significantly upon combined treatment with L. edodes and A. agallocha extracts as compared with those following treatment with single extracts in DNCB-induced allergic contact dermatitis in the ICR mouse. The results of the present study suggest that the components with in the extracts of L. edodes and A. agallocha can help to prevent of UVA-induced genomic instability via a decrease in DNA damage, and to decrease the DNCB-induced allergic dermatitis via modulation of relevant proteins including IgE and IL-6. Further study is needed to clarify the purified components related to the preventative effects of the two extracts against UVA- or DNCB-induced genomic damage.