scholarly journals Keratin 17 is Not Always a Marker of Proliferation of Keratinocytes in Skin Diseases

2021 ◽  
Vol Volume 14 ◽  
pp. 1247-1251
Author(s):  
Li Cui ◽  
Zirong Zhu ◽  
Yiguo Feng ◽  
Yanfei Zhang
Keyword(s):  
Skin Diseases ◽  
Keratin 17

scholarly journals Keratin 17 is induced in prurigo nodularis lesions

2020 ◽  
Vol 18 (1) ◽  
pp. 463-471
Author(s):  
Li-Li Yang ◽  
Hai-Yan Huang ◽  
Zhen-Zhen Chen ◽  
Ran Chen ◽  
Rong Ye ◽  
...  
Keyword(s):  
Skin Diseases ◽  
Housekeeping Gene ◽  
Mrna Levels ◽  
Prurigo Nodularis ◽  
Keratinocyte Proliferation ◽  
Protein Levels ◽  
Inflammatory Dermatosis ◽  
Keratin 17 ◽  
Normal Epidermis ◽  
Perilesional Skin

AbstractPrurigo nodularis (PN) is a highly pruritic chronic inflammatory dermatosis with unknown pathogenesis. It is characterized by the existence of many hyperkeratotic, erosive papules and nodules, and the development of lesions may be associated with hyperproliferation and aberrant differentiation of keratinocytes. Keratin 17 (K17) is overexpressed selectively in human proliferative skin diseases, promoting keratinocyte proliferation not found in normal epidermis. In this study, we investigated the mRNA levels and protein levels of K17 in lesional and perilesional skin using quantitative real-time polymerase chain reaction and western blot. We demonstrate that K17 is induced in lesional and perilesional skin in PN. The mRNA expression level of K17 was upregulated in PN lesions (P < 0.01), with multifold changes in the PN lesion (normalized to glyceraldehyde-3-phosphate dehydrogenase as the housekeeping gene) showing a median positive correlation with PRUNOSI (P < 0.05). The protein level of K17 was also markedly increased in PN lesions (P < 0.01). In conclusion, K17 is highly induced in PN lesions, which may contribute to the proliferation of keratinocytes and the pathogenesis of PN.

scholarly journals Effect ofGloriosa superbaandCatharanthus roseusExtracts on IFN-γ-Induced Keratin 17 Expression in HaCaT Human Keratinocytes

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Nattaporn Pattarachotanant ◽  
Varaporn Rakkhitawatthana ◽  
Tewin Tencomnao
Keyword(s):  
Skin Diseases ◽  
Human Keratinocytes ◽  
Dependent Manner ◽  
Gloriosa Superba ◽  
Experimental Approaches ◽  
Ifn Γ ◽  
Keratin 17 ◽  
Ethanol Extracts ◽  
Dose Dependent ◽  
Stat Pathway

Gloriosa superbaandCatharanthus roseusare useful in traditional medicine for treatment of various skin diseases and cancer. However, their molecular effect on psoriasis has not been investigated. In this study, the effect of ethanol extracts derived fromG. superbaleaves andC. roseusstems on the expression of psoriatic marker, keratin 17 (K17), was investigated in human keratinocytes using biochemical and molecular experimental approaches. Both extracts could reduce the expression of K17 in a dose-dependent manner through JAK/STAT pathway as demonstrated by an observation of reduced phosphorylation of STAT3 (p-STAT3). The inhibitory activity ofG. superbaextract was more potent than that ofC. roseus. The Pearson's correlation between K17 and cell viability was shown positive. Taken together, the extracts ofG. superbaandC. roseusmay be developed as alternative therapies for psoriasis.

Impact of skin diseases on military operations

1969 ◽  
Vol 100 (6) ◽  
pp. 702-702 ◽  
Author(s):  
M. B. Sulzberger
Keyword(s):  
Skin Diseases ◽  
Military Operations

The Constructive Thinking Inventory: Factorial Structure in Healthy Individuals and Patients with Chronic Skin Diseases

1998 ◽  
Vol 14 (3) ◽  
pp. 226-233 ◽  
Author(s):  
Jürgen Hoyer ◽  
Mechthild Averbeck ◽  
Thomas Heidenreich ◽  
Ulrich Stangier ◽  
Karin Pöhlmann ◽  
...  
Keyword(s):  
Skin Diseases ◽  
Principal Component ◽  
Initial Study ◽  
Statistical Independence ◽  
Constructive Thinking ◽  
Global Factor ◽  
Emotional Coping ◽  
Factor Congruence ◽  
Chronic Skin ◽  
Chronic Skin Diseases

Epstein's “Constructive Thinking Inventory” (CTI) was developed to measure the construct of experiential intelligence, which is based on his cognitive-experiential self-theory. Inventory items were generated by sampling naturally occurring automatic cognitions. Using principal component analysis, the findings showed a global factor of coping ability as well as six main factors: Emotional Coping, Behavioral Coping, Categorical Thinking, Personal Superstitious Thinking, Esoteric Thinking, and Naive Optimism. We tested the replicability of this factor structure and the amount of statistical independence (nonredundancy) between these factors in an initial study of German students (Study 1, N = 439) and in a second study of patients with chronic skin disorders (Study 2, N = 187). Factor congruence with the original (American) data was determined using a formula proposed by Schneewind and Cattell (1970) . Our findings show satisfactory factor congruence and statistical independence for Emotional Coping and Esoteric Thinking in both studies, while full replicability or independence could not be found in both for the other factors. Implications for the use and further development of the CTI are discussed.

Investigating Personality and Psychopathology in Patients With Psoriasis

2017 ◽  
Vol 38 (2) ◽  
pp. 87-107 ◽  
Author(s):  
Chiara Vari ◽  
Patrizia Velotti ◽  
Alessandro Crisi ◽  
Silvana Carlesimo ◽  
Antonio G. Richetta ◽  
...  
Keyword(s):  
Skin Diseases ◽  
Clinical Importance ◽  
Self Report ◽  
Psychological Issues ◽  
Self Evaluation ◽  
Affective Quality ◽  
Millon Clinical Multiaxial Inventory ◽  
Study Results ◽  
Completion Test ◽  
Skin Conditions

Abstract. A broad range of literature reported higher rates of psychopathology and personality disorders among patients affected by skin conditions. Specifically, depression, anxiety, and suicidal ideations are more frequently reported by patients affected by skin diseases. This study aimed to examine psychopathology and personality in a group of patients affected by psoriasis by means of a self-report measure (Millon Clinical Multiaxial Inventory – MCMI-III) and a performance-based technique (Wartegg Drawing Completion Test [WDCT], CWS). Study results showed a higher rate of passive-aggressiveness and paranoia among psoriatic patients (MCMI-III). When assessing patients through the performance-based technique (WDCT, CWS), a higher rate of global rejection (GR) – linked by previous literature to suicidal ideation – and a lower affective quality of the drawings emerged. We discuss the clinical importance of detecting psychological issues in dermatology patients by means of a multimethod assessment that goes beyond patients’ self-evaluation of their symptoms and emotions.

Efficacy and Safety of Oral Ivermectin and Topical Permethrin in the Treatment of Scabies

2020 ◽  
Vol 33 (1) ◽  
pp. 41-47
Author(s):  
Mohsena Akhter ◽  
Ishrat Bhuiyan ◽  
Zulfiqer Hossain Khan ◽  
Mahfuza Akhter ◽  
Gulam Kazem Ali Ahmad ◽  
...  
Keyword(s):  
Skin Diseases ◽  
Close Contact ◽  
Randomized Study ◽  
Sarcoptes Scabiei ◽  
Efficacy And Safety ◽  
Common Skin ◽  
Group A ◽  
The Mean ◽  
The Difference ◽  
Group B

Background: Scabies is one of the most common skin diseases in our country. It is caused by the mite Sarcoptes scabiei var hominis, which is an ecto-parasite infesting the epidermis. Scabies is highly contagious. Prevalence is high in congested or densely populated areas. Individuals with close contact with an affected person should be treated with scabicidal which is available in both oral and topical formulations. The only oral but highly effective scabicidal known to date is Ivermectin. Amongst topical preparations, Permethrin 5 % cream is the treatment of choice. Objective: To evaluate the efficacy & safety of oral Ivermectin compared to topical Permethrin in the treatment of scabies. Methodology: This prospective, non-randomized study was conducted at the out-patient department of Dermatology and Venereology of Shaheed Suhrawardy Medical College & Hospital over a period of 6 months, from August 2016 to January 2017. The study population consisted of one hundred patients having scabies, enrolled according to inclusion criteria. They were divided into two groups. group A was subjected to oral Ivermectin and the group B to Permethrin 5% cream. Patients were followed up on day 7 and 14 for assessment of efficacy and safety. Result: The mean scoring with SD in group A (Ivermectin) and group B (Permethrin) were 8.26 ± 2.22 and 7.59 ± 2.01 respectively at the time of observation. The difference between the mean score of the two group is not significant (p=0.117) the mean scoring with SD in group A and group B were 4.54 ± 2.05 and 1.64 ± 1.84 respectively at 7thdays. The difference between the mean score of the two group is significant (p<0.001). The mean scoring with SD in group A and group B were 2.68± 2.35 and .36± 1.10 respectively at 14th day difference between the mean score of the group is significant (p<0.001). Conclusion: Topical application of permethrin 5% cream is more effective and safer than oral Ivermectin in the treatment of scabies. TAJ 2020; 33(1): 41-47

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