Clinical trial NCT04242082: Glucose Trnsporter and PEDF in Psoriasis
Official title: Role of Glucose Transporter (GLUT) Genes Expression in Patients With Psoriasis
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: Psoriasis Vulgaris
Keywords: GLUT 1
PEDF
Psoriasis Vulgaris
Lead sponsor: Assiut University
Sponsor class: OTHER
First posted: 2020-01-27
Enrollment: 75
Sex: MALE
Standard ages: CHILD
ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: CASE_CONTROL
Time perspective: CROSS_SECTIONAL
Sampling method: NON_PROBABILITY_SAMPLE
Study population: first group (N=25) : Patients with psoriasis vulgaris second group(N=25) :Patients with psoriasis vulgaris and type 2 diabetes third group(N=25) : healthy control

data collection :

* Sex
* Age
* BMI
* Blood glucose level ,HA1c using high performance liquid chromatography (HPLC)
* Duration of disease (T2D and psoriasis)
* Severity of psoriasis by psoriasis area severity index (PASI)

Brief summary: Psoriasis is a chronic relapsing cutaneous immune mediated inflammatory disease(IMID). In which there are skin lesions characterized by erythema, thickness and scale formation with different size from a pinhead to 20 cm in diameter. Prevalence of psoriasis is 2% to 4% worldwide. Psoriasis occurs at any age with two peaks: between 15-20 years and between 55-60 years. Women are presented with psoriasis at younger age than men ,but with less severity. lesions usually present on knee, elbow, scalp and sacral region this may be attributed to higher traumatic incident .

Psoriasis vulgaris is the most common type, and accounts 90% of cases. Patients with psoriasis vulgaris present with pain, itching and bleeding from skin lesions.

There are many theories for psoriasis pathogenesis: angiogenesis, decrease in apoptosis of keratinocyte, hyperproliferation , alteration of cell to cell adhesion and immune-mediated inflammation.

Patients with immune mediated inflammatory disease (IMID) are susceptible to develop diabetes mellitus, metabolic syndrome, hyperlipidemia, and hypertension.A previous study found that psoriatic patients are more susceptible to type 2 diabetes compared to control.

Glucose transporter type 1(GLUT1) is upregulated in psoriatic patient attributed to angiogenesis and execessive cell proliferation in those patients .Also expression of GLUT 1 is found high with hyperglycemia . A study reported that GLUT 1 density in placenta of women with gestational diabetes was found to be two folds higher than control.

Pigment epithelium derived factor (PEDF) has antiangiogenic effect. Topical application of PEDF on mouse model of psoriatic disease helps in reduction of skin proliferation and angiogenesis.

GLUT 1 overexpression was found to be associated with decrease in PEDF expression in diabetic retinopathy.

In view of that we will compare the level of GLUT 1 gene in psoriatic patients and psoriatic patients with diabetes, as well as healthy control, and detect the effect of PEDF on GLUT 1 expression in vitro using human keratinocytes cell line .


Eligibility criteria: Inclusion Criteria:

* Patients with psoriasis vulgaris Patients with psoriasis vulgaris and type 2 diabetes

Exclusion Criteria:

* Factors affect GLUT 1 expression As: tumors either benign or malignant cause increase GLUT 1 expression

Primary outcomes:
measure: GLUT1 expression in psoriatic patients with or without type 2 diabetes.
timeFrame: through study completion, an average of 2 year
measure: GLUT1 expression in keratinocyte before and after treatment with pigment epithelium derived factor (PEDF)
timeFrame: through study completion, an average of 2 year
Secondary outcomes:
Other outcomes:
Locations:
Study officials:
affiliation: Assiut University
name: Naglaa K Idriss, asst. prof
role: STUDY_DIRECTOR
affiliation: Assiut University
name: Ayaat ِA Sayed, asst. prof
role: STUDY_DIRECTOR
References:
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