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1.
J Clin Med ; 13(6)2024 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-38541973

RESUMO

Atopic dermatitis (AD) is a chronic inflammatory skin disease associated with pruritus, an impaired cutaneous barrier function and a disrupted water holding capacity. Levels of ceramides, which are major components of intercellular lipids and are crucial for their functions, are decreased in the stratum corneum of patients with AD. Treatments to increase ceramide levels are effective for AD care. Synthetic pseudo-ceramide (cetyl PG hydroxyethyl palmitamide (SLE66)), which has a structure developed via molecular designs, and a eucalyptus leaf extract (ELE) enhance ceramide synthesis in the epidermis. The topical application of a skin moisturizer containing SLE66 and ELE improves the barrier functions and water holding capacity of AD skin accompanied by an improvement in skin symptoms. This is a multifaceted review that summarizes the efficacy of the topical application of a skin moisturizer containing SLE66 and ELE on atopic dermatitis.

2.
Tohoku J Exp Med ; 260(2): 135-140, 2023 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-36990744

RESUMO

Dialysis technology has made remarkable progress. However, many patients still suffer from malnutrition and hypertension. They cause many complications and significantly impact patients' quality of life and prognosis. To solve these problems, we developed a new dialysis modality, extended-hours hemodialysis without dietary restrictions. Here we report a case of a man who has received this treatment for 18 years. He had been on conventional hemodialysis (three times a week for 4 hours) since his dialysis initiation. He suffered from hypertension and was on five antihypertensive drugs to control his blood pressure. In addition, dietary restrictions were strict, and the nutritional status was somewhat poor. After being transferred to our clinic, the dialysis time was gradually extended to 8 hours, and dietary restrictions were greatly relaxed. Interestingly, his body mass index (BMI) increased, and his hypertension was controlled. After 3 years, he stopped all antihypertensive drugs. This result suggests that improving nutritional status may control hypertension. However, salt intake was substantially increased. Serum phosphorus and serum potassium levels were at a slightly higher level but were controlled by medications. At the time of transfer, anemia was treated with erythropoiesis-stimulating agents and glycated iron oxide, but these drugs were gradually reduced and discontinued. However, he maintained high average erythrocyte counts and normal hemoglobin levels. Dialysis conditions were wholly slow dialysis, lower than conventional dialysis methods, but the dialysis efficiency was satisfactory. In conclusion, we speculate that extended-hours hemodialysis without dietary restrictions reduces the risk of malnutrition and hypertension.


Assuntos
Hipertensão , Falência Renal Crônica , Desnutrição , Masculino , Humanos , Índice de Massa Corporal , Falência Renal Crônica/complicações , Falência Renal Crônica/terapia , Anti-Hipertensivos/uso terapêutico , Qualidade de Vida , Diálise Renal/efeitos adversos , Hipertensão/terapia , Hipertensão/tratamento farmacológico , Desnutrição/complicações , Desnutrição/tratamento farmacológico
3.
J Cosmet Dermatol ; 22(2): 577-585, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36217561

RESUMO

OBJECTIVE: Acne vulgaris is caused by dyslipidemia, dyskeratosis and/or abnormal bacterial growth. The obstruction of skin pores due to hyperkeratosis of the infundibulum contributes to the formation of comedones. Thus, normalizing keratinization of epidermal cells in skin pores might be useful to improve acne. Recently, it has been found that the transcutaneous application of carbon dioxide (CO2 ) regulates imbalances of the desquamatory process. In this study, we evaluated the efficacy of a skin lotion containing CO2 on mild acne. METHODS: Twenty-four healthy Japanese males (20-29 years old) with mild acne attended this evaluation. The subjects were divided into 2 groups, one group used a skin lotion containing CO2 and the other group used a skin lotion without CO2 . Following facial washing, each subject topically applied the skin lotion with or without CO2 twice a day for 4 weeks. Prior to the start of the evaluation (week 0) and following 2 and 4 weeks of treatment, acne symptoms were assessed by a dermatologist and by instrumental measurements. RESULTS: Topical application of the skin lotion with CO2 for 4 weeks significantly improved acne symptoms, which was recognized by the subjects. However, treatment with the skin lotion without CO2 did not improve acne symptoms. This improvement of acne symptoms by CO2 was not accompanied by changes in sebum levels, skin surface pH, skin capacitance, or porphyrin levels. CONCLUSION: The transcutaneous application of a lotion with CO2 improves acne symptoms by normalizing keratinization without affecting skin surface conditions.


Assuntos
Acne Vulgar , Neoplasias Cutâneas , Masculino , Humanos , Adulto Jovem , Adulto , Dióxido de Carbono/uso terapêutico , Acne Vulgar/complicações , Acne Vulgar/tratamento farmacológico , Pele , Administração Cutânea , Emolientes/uso terapêutico , Emulsões , Método Duplo-Cego , Resultado do Tratamento
4.
J Invest Dermatol ; 142(12): 3184-3191.e7, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35870561

RESUMO

Atopic dermatitis (AD) is a chronic inflammatory skin disease. Prevention of exacerbation of AD is a crucial issue for all physicians. However, exacerbation of AD often is seen during reduction of AD treatment, even with appropriate follow-up by tapered topical corticosteroids and daily topical moisturizers, indicating the need for good indicators of AD remission. We hypothesized that the presence of mutations in FLG or the stratum corneum ceramide profile on AD remission phase may predict the ease of AD exacerbation. This study examined the differences in the frequency of FLG mutations or stratum corneum ceramide profiles (stratum corneum levels and carbon chain length for 11 ceramide classes [ceramides containing nonhydroxy fatty acids and dihydrosphingosines; nonhydroxy fatty acids and sphingosines; nonhydroxy fatty acids and 6-hydroxysphingosines; nonhydroxy fatty acids and phytosphingosines; a-hydroxy fatty acids and dihydrosphingosines; a-hydroxy fatty acids and sphingosines; a-hydroxy fatty acids and 6-hydroxysphingosines; a-hydroxy fatty acids and phytosphingosines; ester-linked fatty acids, o-hydroxy fatty acids, and sphingosines; ester-linked fatty acids, o-hydroxy fatty acids, and 6-hydroxysphingosines; and ester-linked fatty acids, o-hydroxy fatty acids, and phytosphingosines]) at AD remission phase between the two AD study groups: subsequent exacerbation (‒) and (+) of AD. The frequency of FLG mutations did not differ between the study groups. On the other hand, the carbon chain lengths of ceramides containing nonhydroxy fatty acids and dihydrosphingosines, nonhydroxy fatty acids and sphingosines, and nonhydroxy fatty acids and 6-hydroxysphingosines were shorter in the exacerbated AD group than in the maintained-AD group. Thus, the stratum corneum ceramide profile at the remission phase of AD is a potential biomarker, predicting the likelihood of substantial AD remission or subsequent AD exacerbation.


Assuntos
Ceramidas , Dermatite Atópica , Humanos , Dermatite Atópica/diagnóstico , Dermatite Atópica/tratamento farmacológico , Dermatite Atópica/genética , Ácidos Graxos , Ésteres , Carbono
6.
J Cosmet Dermatol ; 21(10): 4503-4509, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35298858

RESUMO

BACKGROUND: Many patients with atopic dermatitis (AD) have a decreased ability to sweat. Several factors can cause decreased perspiration, such as weak tight junctions of sweat ducts, reduced acetylcholine receptor function, and inhibition of perspiration by histamines. Parakeratosis of AD skin also decreases sweating by occluding sweat pores. Increased ceramide levels in the stratum corneum reduce parakeratosis by improving stratum corneum functions. Furthermore, ceramides and/or ceramide derivatives may affect claudin-3 and acetylcholine receptors. OBJECTIVE: In this study, we investigated the efficacy of a moisturizer containing pseudo-ceramide and a eucalyptus extract to increase ceramide levels in the epidermis to improve the sweating ability of patients with AD. METHODS: Nineteen patients with AD applied moisturizers with or without pseudo-ceramide and a eucalyptus extract on the cubital fossa of either arm twice a day for 4 weeks. Skin conditions and sweating ability, measured as the response to acetylcholine stimulation, were evaluated prior to the start of the study (Week 0) and at the end of Weeks 2 and 4. RESULTS: Both moisturizers improved the visually evaluated skin symptoms and skin hydration. However, only the moisturizer containing pseudo-ceramide and the eucalyptus extract significantly improved cutaneous barrier function and significantly increased the ceramide level in the stratum corneum. That moisturizer also increased the sweating volume and shortened the latency time for sweating, an indicator of sweating ability, but the other moisturizer did not. CONCLUSION: Based on these results, the moisturizer containing pseudo-ceramide and a eucalyptus extract helps recover the sweat function of AD patients.


Assuntos
Dermatite Atópica , Eucalyptus , Paraceratose , Adulto , Humanos , Dermatite Atópica/tratamento farmacológico , Ceramidas , Emolientes/uso terapêutico , Sudorese , Paraceratose/tratamento farmacológico , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico
7.
Clin J Gastroenterol ; 15(2): 505-512, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35013932

RESUMO

Pancreatic serous neoplasms are rare tumors that are usually benign. However, histopathological differentiation between benign (serous cystadenoma) and malignant (serous cystadenocarcinoma) lesions is difficult. We present the case of a patient with pancreatic serous cystadenocarcinoma that was diagnosed with liver metastasis 7 years after the resection of the primary serous neoplastic lesion. A woman in her 60 s was diagnosed with pancreatic serous cystadenoma based on imaging and histopathological examination findings. The tumor was resected, and the patient was followed up every 6 months to monitor tumor progression. At 7 years after the resection of the primary lesion, liver tumors showing marked flare-like contrast enhancements were detected on arterial phase computed tomography findings and on dynamic magnetic resonance imaging findings acquired 60 s after the administration of a contrast agent. Laparoscopic segmental hepatectomy of S4 and S6 was performed to resect these tumors. Histopathological examination revealed that these tumors were metastatic and developed from the primary lesion. Therefore, a diagnosis of serous cystadenocarcinoma was confirmed. The flare-like contrast enhancement around the metastatic liver lesions on computed tomography and dynamic magnetic resonance images may be an indicator of serous cystadenocarcinoma with liver metastasis that could assist in diagnosis.


Assuntos
Cistadenocarcinoma Seroso , Neoplasias Hepáticas , Neoplasias Pancreáticas , Cistadenocarcinoma Seroso/diagnóstico por imagem , Cistadenocarcinoma Seroso/cirurgia , Feminino , Humanos , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/secundário , Neoplasias Hepáticas/cirurgia , Pancreatectomia , Neoplasias Pancreáticas/diagnóstico por imagem , Neoplasias Pancreáticas/cirurgia , Tomografia Computadorizada por Raios X
8.
JID Innov ; 1(3): 100038, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34909734

RESUMO

Acupuncture treatment is based on acupoint stimulation; however, the biological basis is not understood. We stimulated one acupoint with catgut embedding for 8 weeks and then used isobaric tags for relative and absolute quantitation to screen proteins with altered expression in adjacent acupoints of Sprague Dawley rats. We found that kininogen expression was significantly upregulated in the stimulated and the nonstimulated adjacent acupoints along the same meridian. The enhanced kininogen expression was meridian dependent and was most apparent among small vessels in the subcutaneous layer. Enhanced signals of nitric oxide synthases, cGMP-dependent protein kinase, and myosin light chain were also observed at the nonstimulated adjacent acupoints along the same meridian. These findings uncover biological changes at acupoints and suggest the critical role of the kininogen-nitric oxide signaling pathway in acupoint activation.

9.
Gan To Kagaku Ryoho ; 48(3): 443-445, 2021 Mar.
Artigo em Japonês | MEDLINE | ID: mdl-33790182

RESUMO

This is the case of a 72-year-old man in whom multiple colorectal cancers including rectal and appendiceal cancers and synchronous S3 liver metastases were observed in 2014, and resection was performed in 2 stages. In 2017, a single recurrence was found in the liver S8, and he underwent a liver S8 sub-segmental resection. Implantation of a CV port for postoperative chemotherapy was planned. At the time of insertion, the catheter was punctured from the exterior portion of the left subclavian vein to avoid the pinch-off syndrome wherein the catheter is crushed between the clavicle and the first rib. Subsequently, FOLFOX therapy was started, but it was discontinued because of allergic symptoms, which appeared during the third course. Two years after the CV port was implanted, a catheter fracture was found on a chest X-ray performed during a regular visit. Since the detached catheter did not fall into the vein, it was possible to remove the port under fluoroscopy. When a catheter is implanted, even under ultrasound guidance, it is considered important to always keep in mind the possibility of a catheter fracture and to detect and respond to it early.


Assuntos
Cateterismo Venoso Central , Cateteres Venosos Centrais , Neoplasias Hepáticas , Idoso , Cateteres de Demora , Humanos , Neoplasias Hepáticas/tratamento farmacológico , Masculino , Recidiva Local de Neoplasia
10.
J Cosmet Dermatol ; 20(6): 1915-1922, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33040474

RESUMO

BACKGROUND: Many patients with atopic dermatitis (AD) know that harsh rubbing of their skin might worsen their skin symptoms. They consider that the force they use to rub their skin when removing their makeup cosmetics should not be hard and their cleansing habits could worsen their skin symptoms. However, we presume that the force they use to rub their skin may still be strong and might worsen their skin symptoms. AIMS: We characterized the effects of rubbing the skin of AD patients during cleansing of makeup cosmetics. PATIENTS/METHODS: A cleansing oil which has a higher cleansing ability compared the cleansers used daily by the subjects but required less rubbing force was used. We performed a 4-week clinical trial of this cleansing oil on 35 female subjects who had mild AD skin symptoms on their faces. Each subject used the cleansing oil instead of their usual makeup remover without changing their other facial skin care habits. Prior to the study, and at the end of weeks 1 and 4, the skin conditions of each subject were evaluated. RESULTS: Four weeks of usage of this cleansing oil significantly decreased skin dryness, scaling, irritation, erythema, and itchiness. Higher improvements were observed for subjects who had previously used cleansers with less cleansing ability. Accompanying those improvements, a significant increase in moisture-retention ability and a significant decrease in transepidermal water loss were observed. CONCLUSION: These results suggest that many AD patients cleanse their face with hard rubbing of their skin because of the low cleansing ability of their skin cleansers and may worsen their AD skin symptoms without realizing it.


Assuntos
Cosméticos , Dermatite Atópica , Cosméticos/efeitos adversos , Emolientes , Feminino , Humanos , Pele , Higiene da Pele
11.
Cancer Sci ; 111(6): 2078-2092, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32279400

RESUMO

Krüppel-like factor 5 (KLF5) plays an oncogenic role and has diverse functions in cancer cells. However, correlation between KLF5 and clinical outcome has not been determined in patients with colorectal cancer and colorectal liver metastasis. Herein, we analyzed 65 patients with colorectal cancer who developed colorectal liver metastasis. Clinical effects were assessed through immunohistochemical analysis of primary colorectal cancer lesions and metastatic liver lesions. High expression of KLF5 in these tissues correlated with the presence of vascular invasion, elevated serum carbohydrate antigen 19-9 levels, large diameters of metastatic liver tumors, and poor prognosis following surgery. Multivariate analyses revealed that high expression of KLF5 was an independent prognostic factor. Increased expression of KLF5 in both colorectal cancer primaries and colorectal liver metastasis was significantly associated with shorter overall survival time and time to surgical failure. Krüppel-like factor 5 expression positively correlated with Ki-67 and c-Myc expression in colorectal cancer tissues. In vitro experiments with colon cancer cell lines showed that siRNA knockdown of KLF5 inhibited cell proliferation. Western blot analyses revealed that knockdown of KLF5 expression reduced cyclin D1 and c-Myc expression. It also impaired the stem cell-like properties of cancer cells in tumorsphere formation assays. Furthermore, anoikis assay indicated that KLF5 contributed to anoikis resistance. High KLF5 expression is associated with poor prognosis in patients with colorectal cancer and liver metastasis by promoting cell proliferation and cancer stem cell-like properties.


Assuntos
Biomarcadores Tumorais/metabolismo , Neoplasias Colorretais/patologia , Fatores de Transcrição Kruppel-Like/metabolismo , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/análise , Proliferação de Células/fisiologia , Neoplasias Colorretais/metabolismo , Progressão da Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica/patologia , Células-Tronco Neoplásicas/metabolismo , Células-Tronco Neoplásicas/patologia , Prognóstico
12.
J Cosmet Dermatol ; 19(4): 901-909, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31347768

RESUMO

BACKGROUND: Acne is one of the most common skin problems among human populations. A facial cleanser formulated with alkyl ether carboxylate (AEC) and alkyl carboxylate (AC) can improve acne by cleansing sebum on facial skin but cannot effectively remove keratotic plugs in the skin pores. Recently, we confirmed that Tris (hydroxymethyl) aminomethane and L-arginine (Tris/Arg) is able to reduce sebum levels, disrupt keratotic plugs in vitro and decrease pore size on facial skin. OBJECTIVE: To compare the efficacy of the Tris/Arg-formulated cleanser with the AEC/AC cleanser in Thai subjects with acne. METHODS: We designed a randomized, double-blind, controlled, parallel trial. Thirty-four male Thai subjects with mild to moderate acne were assigned to one of two groups: one group used the Tris/Arg cleanser while the other used the AEC/AC-based cleanser twice a day for 4 weeks. RESULTS: After 4 weeks, significant decreases in noninflammatory acne were observed in both groups, yet significant decreases in inflammatory acne were only observed in the Tris/Arg cleanser group. The sebum level prior to and 30 minutes after facial washing showed no change in either group. The average pore size with keratotic plugs on the cheeks was significantly decreased in the Tris/Arg group. More than half of subjects in both groups observed acne improvement but more subjects in the Tris/Arg group noted pore size improvement. CONCLUSION: The Tris/Arg formulated cleanser has a high efficacy for significantly reducing both noninflammatory and inflammatory acne accompanied by decreases in pore size with keratotic plugs in male Thai subjects.


Assuntos
Acne Vulgar/tratamento farmacológico , Arginina/administração & dosagem , Cosmecêuticos/administração & dosagem , Higiene da Pele/métodos , Trometamina/administração & dosagem , Acne Vulgar/diagnóstico , Adulto , Arginina/efeitos adversos , Ácidos Carboxílicos/administração & dosagem , Ácidos Carboxílicos/efeitos adversos , Cosmecêuticos/efeitos adversos , Cosmecêuticos/química , Método Duplo-Cego , Humanos , Masculino , Sebo/efeitos dos fármacos , Índice de Gravidade de Doença , Pele/efeitos dos fármacos , Higiene da Pele/efeitos adversos , Tailândia , Resultado do Tratamento , Trometamina/efeitos adversos , Adulto Jovem
14.
J Cosmet Dermatol ; 18(3): 850-856, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30084152

RESUMO

BACKGROUND: Skin moisturizing is advocated to take care of the skin of patients with atopic dermatitis (AD). However, many patients stop using moisturizers in the summer because of excessive sweating and high humidity. OBJECTIVES: To examine the efficacy of a moisturizing gel containing a pseudo-ceramide and a eucalyptus extract, which enhances epidermal ceramide synthesis of patients with mild AD in the summer. METHODS: We performed a single-blinded 4-week clinical trial of body care on 44 Japanese subjects who had mild AD. They had not applied any moisturizer on their body in the summer. Twenty-seven subjects used the moisturizing gel containing a pseudo-ceramide and a eucalyptus extract twice a day and the 17 other subjects did not use any moisturizer. Prior to and at the end of weeks 2 and 4, the skin conditions of each subject were evaluated. RESULTS: During the test period, the atmospheric temperature increased and skin dryness and scaling significantly improved with or without application of the moisturizing gel. However, the improvement in dryness of the treated group was significantly higher than that of the nontreated group. Erythema and itchiness were significantly improved only in the treated group. The skin hydration on the forearm increased significantly only in the treated group. Accompanying those improvements, the quality of life of the subjects, evaluated by Skindex-16® , was significantly improved. CONCLUSION: The usage of a moisturizer containing a pseudo-ceramide and a eucalyptus extract is effective for care of the skin of AD subjects even in the summer.


Assuntos
Ceramidas/administração & dosagem , Dermatite Atópica/tratamento farmacológico , Emolientes/administração & dosagem , Eucalyptus/química , Extratos Vegetais/administração & dosagem , Adulto , Povo Asiático , Ceramidas/química , Emolientes/química , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Qualidade de Vida , Estações do Ano , Método Simples-Cego , Pele/efeitos dos fármacos , Resultado do Tratamento
15.
Clin Cosmet Investig Dermatol ; 11: 141-148, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29670385

RESUMO

OBJECTIVE: Dry and scaly conditions on the scalp are often observed in patients with atopic dermatitis, seborrheic dermatitis and/or pityriasis capitis. Those scalp lesions often exhibit low barrier function and reduced ceramide levels. Therefore, a clinical study was conducted to evaluate the efficacy of topical application of a pseudo-ceramide and eucalyptus extract-containing lotion on the scalps of patients with skin diseases. METHODS: Thirty-four subjects participated in this study (atopic dermatitis: 19 subjects; seborrheic dermatitis: 6 subjects; pityriasis capitis: 9 subjects). After 4 weeks of daily treatment with a pseudo-ceramide and eucalyptus extract-containing lotion, the skin symptoms had significantly improved in all patients with those skin diseases. RESULTS: Skin dryness, scaling, and erythema were significantly improved by treatment with the lotion. The moisture-retention ability of the scalp was significantly increased and itchiness, evaluated using a visual analog scale, decreased significantly. Accompanying those improvements was a significant improvement in the quality of life of the subjects, evaluated by the Skindex-16®. CONCLUSION: From these results, we conclude that this pseudo-ceramide and eucalyptus extract-containing lotion effectively improved the dry and scaly conditions of the scalp as well as the quality of life of subjects with atopic dermatitis, seborrheic dermatitis, or pityriasis capitis.

16.
J Cosmet Dermatol ; 17(1): 84-89, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28488347

RESUMO

BACKGROUND: Many people use lip care products daily to prevent dry lips. However, some people, especially those with sensitive skin-consciousness, complain of various skin problems on their lips including contact dermatitis caused by lip care products. Dry lips have decreased water holding capacity and cutaneous barrier function as well as reduced stratum corneum ceramide levels. In this study, we investigated the usefulness of a newly formulated lip balm containing pseudo-ceramide for the dry lips of subjects with sensitive skin. METHOD: Thirty subjects with dry lips and sensitive skin-consciousness used the test lip balm more than twice a day for 4 weeks. Lip conditions were evaluated before and after 2 and 4 weeks. RESULT: Visual evaluation by a dermatologist showed that overall improvements were observed in all subjects as early as week 2. After 4 weeks of usage, 27% of the subjects were objectively judged as "markedly improved" and 60% of the subjects were judged as "improved". No adverse event developed throughout the test period, and all subjects were able to use the lip balm safely for 4 weeks. Usefulness was judged based on all evaluation items, and 27%, 70%, and 3% of the subjects were judged as "very useful," "useful," and "slightly useful," respectively. Ninety percentage of the subjects expressed improvement and acceptance of the lip balm. CONCLUSION: Based on these results, the newly formulated lip balm containing pseudo-ceramide is very useful for the lip care of sensitive skin-conscious subjects as well as for daily use by healthy subjects.


Assuntos
Ceramidas/administração & dosagem , Lábio/efeitos dos fármacos , Lábio/fisiopatologia , Satisfação do Paciente , Higiene da Pele/métodos , Creme para a Pele/administração & dosagem , Adulto , Estudos de Coortes , Cosméticos/administração & dosagem , Feminino , Seguimentos , Humanos , Japão , Estudos Prospectivos , Fenômenos Fisiológicos da Pele , Estatísticas não Paramétricas , Resultado do Tratamento , Adulto Jovem
17.
Clin Cosmet Investig Dermatol ; 10: 393-401, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29042805

RESUMO

OBJECTIVE: Despite the application of skin care treatments, many infants have skin problems such as dryness and erythema. We proposed a new combination skin care for infants which consisted of a foaming cleanser with lower surfactant activity and moisturizers that contained pseudo-ceramide. SUBJECTS AND METHODS: A total of 50 infants (age: 3-24 months) with insignificant levels of dry skin were enrolled in this usage trial. The parents washed the infants with the test cleanser while bathing and then applied the moisturizer (lotion or cream) containing pseudo-ceramide. Prior to and following the 4-week usage period, visual evaluation of the skin condition was conducted by a dermatologist, in addition to instrumental analysis. RESULTS: Erythema and papule, accompanied by dryness, were commonly observed at week 0. However, by week 4, these symptoms significantly improved; the condition of none of the subjects deteriorated. The number of infants with lower cutaneous barrier function and higher skin pH decreased. The parents of the infants recognized improvements in the skin symptoms and were appreciative of the test materials. CONCLUSION: The combined usage of the foaming cleanser with lower surfactant activity and a moisturizer containing pseudo-ceramide may be effective in maintaining healthy infant skin and ameliorating the skin symptoms.

18.
Arch Dermatol Res ; 309(7): 541-550, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28631090

RESUMO

Stratum corneum forms the UV barrier. The effect of ultraviolet B (UVB) on normal skin was extensively studied; however, its effect on barrier perturbed skin remains undefined. Both barrier perturbation and UVB irradiation induce endoplasmic reticulum (ER) stress and unfolded protein response (UPR) in keratinocytes. Mild ER stress activates homeostatic UPR, while severe ER stress leads to abnormal UPR, promoting apoptosis and inflammation. Here, we investigated UV sensitivity and UVB-induced UPR in barrier-disrupted human skin and the effects of pseudoceramide-dominant emollient on UVB-induced skin responses. Tape-stripped skin of healthy volunteers showed enhanced susceptibility to erythema and augmented proinflammatory cytokines induction following suberythemal UVB irradiation. Suberythemal UVB activated XBP1 in normal skin, while increased CHOP transcription in barrier perturbed skin. After tape stripping, pseudoceramide-dominant emollient was applied for 3 days, and then, the areas were irradiated with suberythemal UVB. Pretreatment with topical pseudoceramide protected against UVB-induced upregulation of IL-1ß, IL-6, and TNF-α transcription and reduced susceptibility to erythema following UVB. Topical pseudoceramide also suppressed suberythemal UVB-induced CHOP transcription in barrier-disrupted skin. Taken together, these data indicate that permeability barrier disruption increases UV sensitivity in human skin, partly via switch the UVB-induced UPR, from homeostatic signals to pro-apoptotic and proinflammatory signals. In addition, we conclude that pseudoceramide-dominant emollient suppresses excessive ER stress induction and CHOP activation following UVB in barrier damaged skin, providing evidence that pseudoceramide-dominant emollients can be promising strategies for photoprotection of the barrier damaged skin.


Assuntos
Estresse do Retículo Endoplasmático/efeitos da radiação , Eritema/tratamento farmacológico , Queratinócitos/efeitos da radiação , Espermina/análogos & derivados , Tirosina/análogos & derivados , Raios Ultravioleta/efeitos adversos , Resposta a Proteínas não Dobradas/efeitos da radiação , Adulto , Proteínas Estimuladoras de Ligação a CCAAT/biossíntese , Eritema/prevenção & controle , Feminino , Humanos , Interleucina-1beta/biossíntese , Interleucina-1beta/genética , Interleucina-6/biossíntese , Interleucina-6/genética , Queratinócitos/metabolismo , RNA Mensageiro/biossíntese , Pele/patologia , Pele/efeitos da radiação , Espermina/farmacologia , Junções Íntimas/fisiologia , Fator de Necrose Tumoral alfa/biossíntese , Fator de Necrose Tumoral alfa/genética , Tirosina/farmacologia
19.
J Dermatol ; 42(2): 181-8, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25483138

RESUMO

Acne is a common skin disease that involves the seborrheic area of the face and results from the obstruction of hair follicles followed by inflammation. Careful face washing helps to improve and prevent acne; however, intensive washing has a risk of inducing skin barrier impairment and dry skin, especially in sensitive skin. We hypothesized that skin care combining mild skin cleansing and intensive moisturizing ("combination skin care") may be effective in the care of acne in subjects with dry skin and/or sensitive skin. We developed a combination skin care with a weakly acidic foaming facial skin cleanser based on a mild detergent, an aqueous lotion with eucalyptus extract and a moisturizing gel containing pseudo-ceramide and eucalyptus extract. To optimize an ideal facial skin care system for mild acne on sensitive skin, we performed a 4-week clinical trial with 29 post-adolescent Japanese women with mild acne with dry and sensitive skin. The acne significantly decreased after this trial accompanied by the improvement of dry skin, a significantly increased endogenous ceramide level in the stratum corneum and an elongated alkyl chain length of the non-hydroxy acyl sphingosine type ceramide. No adverse events due to the test samples were observed. Based on diagnosis by a dermatologist, 97% of the subjects found the combination skin care to be "useful" or "slightly useful". Based on these findings, the combined use of a facial skin cleanser and moisturizers is safe and effective for the care of acne in post-adolescent Japanese women with sensitive skin.


Assuntos
Acne Vulgar/tratamento farmacológico , Detergentes/uso terapêutico , Eucalyptus , Extratos Vegetais/uso terapêutico , Higiene da Pele/métodos , Creme para a Pele/uso terapêutico , Acne Vulgar/complicações , Acne Vulgar/patologia , Adulto , Ceramidas/metabolismo , Epiderme/efeitos dos fármacos , Epiderme/metabolismo , Feminino , Géis , Humanos , Transtornos das Sensações/complicações , Adulto Jovem
20.
J Cosmet Dermatol ; 13(4): 245-52, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25399616

RESUMO

BACKGROUND: Because excess sebum and/or metabolites of sebum induce skin problems, cleansers that can remove those kinds of sebum are sought after. However, many people, especially who have little facial sebum, are afraid to wash off sebum well because that may induce dry skin. This concern may be caused by the result that cleansers with a high cleansing ability tend to decrease not only facial sebum but also natural moisturizing factors and intercellular lipids that are essential for cutaneous function. Recently, we have developed a new cleanser based on sodium laureth carboxylate and alkyl carboxylates (AEC/soap) that cleans sebum well without penetrating the stratum corneum. OBJECTIVES: This trial was aim to clarify the effects of sebum removal by AEC/soap-based cleanser on the induction of dry skin. METHODS: We designed a controlled single blind parallel trial. Thirty female subjects with mild dry skin were assigned randomly to two groups: one group used AEC/soap-based cleanser while the other group kept using their usual facial cleanser twice a day for 4 weeks in the winter season. RESULTS: Using a colored artificial sebum mixture, it was demonstrated that this cleanser washed sebum well. Following usage of this cleanser, their dry skin improved rather than worsen which was indicated by instrumental analysis and visual assessment. These improvements were recognized by subjects. CONCLUSIONS: These results suggest that AEC/soap-based cleanser washes off facial sebum well, but it has little effect on the induction of dry skin because of less penetration into stratum corneum.


Assuntos
Ácidos Acíclicos/administração & dosagem , Ácidos Carboxílicos/administração & dosagem , Face , Higiene da Pele/métodos , Sabões/administração & dosagem , Feminino , Humanos , Sebo , Método Simples-Cego , Pele/efeitos dos fármacos , Sabões/química
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