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Alopecia areata, also known as spot baldness, is a condition in which hair is lost from some or all areas of the body. It often results in a few bald spots on the scalp, each about the size of a coin. Psychological stress and illness are possible factors in bringing on alopecia areata in individuals at risk, but in most cases there is no obvious trigger. People are generally otherwise healthy. In a few cases, all the hair on the scalp is lost, or all body hair is lost. Hair loss can be permanent, or temporary.
Adapalene is a third-generation topical retinoid primarily used in the treatment of mild-moderate acne, and is also used off-label to treat keratosis pilaris as well as other skin conditions. Studies have found adapalene is as effective as other retinoids, while causing less irritation. It also has several advantages over other retinoids. The adapalene molecule is more stable compared to tretinoin and tazarotene, which leads to less concern for photodegradation. It is also chemically more stable compared to the other two retinoids, allowing it to be used in combination with benzoyl peroxide. Due to its effects on keratinocyte proliferation and differentiation, adapalene is superior to tretinoin for the treatment of comedonal acne and is often used as a first-line agent. The Swiss company Galderma sells adapalene under the brand-name product Differin.
Pityriasis rosea is a type of skin rash. Classically, it begins with a single red and slightly scaly area known as a "herald patch". This is then followed, days to weeks later, by an eruption of many smaller scaly spots; pinkish with a red edge in people with light skin and greyish in darker skin. About 20% of cases show atypical deviations from this pattern. It usually lasts less than three months and goes away without treatment. Sometimes malaise or a fever may occur before the start of the rash or itchiness, but often there are few other symptoms.
Lichen sclerosus (LS) is a chronic, inflammatory skin disease of unknown cause which can affect any body part of any person but has a strong preference for the genitals and is also known as balanitis xerotica obliterans (BXO) when it affects the penis. Lichen sclerosus is not contagious. There is a well-documented increase of skin cancer risk in LS, potentially improvable with treatment. LS in adult age women is normally incurable, but improvable with treatment, and often gets progressively worse if not treated properly. Most males with mild or intermediate disease restricted to foreskin or glans can be cured by either medical or surgical treatment.
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Pyoderma gangrenosum is a rare, inflammatory skin disease where painful pustules or nodules become ulcers that progressively grow. Pyoderma gangrenosum is not infectious.
Pityriasis alba is a skin condition, a type of dermatitis, commonly seen in children and young adults as dry, fine-scaled, pale patches on the face. It is self-limiting and usually only requires use of moisturizer creams.
Eosinophilic folliculitis is an itchy rash with an unknown cause that is most common among individuals with HIV, though it can occur in HIV-negative individuals where it is known by the eponym Ofuji disease. EF consists of itchy red bumps (papules) centered on hair follicles and typically found on the upper body, sparing the abdomen and legs. The name eosinophilic folliculitis refers to the predominant immune cells associated with the disease (eosinophils) and the involvement of the hair follicles.
Cholinergic urticaria is a type of hives (urticaria) that is triggered by an increase in body temperature, such as during exercise, sweating, or exposure to heat. It is also sometimes called exercise-induced urticaria or heat hives. The condition is caused by an overreaction of the immune system to the release of histamine and other chemicals in response to the increase in body temperature. This results in the characteristic red, itchy, and sometimes raised bumps or welts on the skin that are associated with hives.
Dalbavancin, sold under the brand names Dalvance in the US and Xydalba in the EU among others, is a second-generation lipoglycopeptide antibiotic medication. It belongs to the same class as vancomycin, the most widely used and one of the treatments available to people infected with methicillin-resistant Staphylococcus aureus (MRSA).
Psoriatic onychodystrophy or psoriatic nails is a nail disease. It is common in those with psoriasis, with reported incidences varying from 10% to 78%. Elderly patients and those with psoriatic arthritis are more likely to have psoriatic nails.
Eosinophilic cellulitis, also known as Wells' syndrome, is a skin disease that presents with painful, red, raised, and warm patches of skin. The rash comes on suddenly, lasts for a few weeks, and often repeatedly comes back. Scar formation does not typically occur.
Cellulite or gynoid lipodystrophy (GLD) is the herniation of subcutaneous fat within fibrous connective tissue that manifests as skin dimpling and nodularity, often on the pelvic region, lower limbs, and abdomen. Cellulite occurs in most postpubescent females. A review gives a prevalence of 85–98% of women of European descent, but it is considerably less common in women of East Asian descent. It is believed to be physiological rather than pathological. It can result from a complex combination of factors, including diet, sedentary lifestyle, hormonal imbalance or heredity, among others.
Derm101 was an online and mobile resource for physicians and healthcare professionals to learn the diagnosis and treatment of dermatologic diseases. The resource includes online textbooks, interactive quizzes, peer-reviewed open access dermatology journals, a dermatologic surgery video library, case studies, thousands of clinical photographs and photomicrographs of skin diseases, and mobile applications.
A sweat allergy is the exacerbation of atopic dermatitis associated with an elevated body temperature and resulting increases in the production of sweat. It appears as small reddish welts that become visible in response to increased temperature and resulting production of sweat. It can affect all ages. Sweating can trigger intense itching or cholinergic urticaria. The protein MGL_1304 secreted by mycobiota (fungi) present on the skin such as Malassezia globosa acts as a histamine or antigen. People can be desensitized using their own samples of sweat that have been purified that contains small amounts of the allergen. The allergy is not due to the sweat itself but instead to an allergy-producing protein secreted by bacteria found on the skin.
Abrocitinib, sold under the brand name Cibinqo, is a medication used for the treatment of atopic dermatitis (eczema). It is a Janus kinase inhibitor and it was developed by Pfizer. It is taken by mouth.
References
- ↑ Heule F (1992). "An Oral Approach to the Treatment of Photodamaged Skin: a Pilot Study". Journal of International Medical Research. 20 (3): 273–278. doi:10.1177/030006059202000309. PMID 1397672. S2CID 19898901.
- ↑ Heule F (1994). "The improvement of the consequences of cutaneous aging". Journal of the European Academy of Dermatology and Venereology. 3 (2): 224. doi:10.1111/j.1468-3083.1994.tb00104.x. S2CID 57879688.
- ↑ Kieffer ME and Efsen J (1998). "Imedeen in the treatment of photoaged skin: an efficacy and safety trial over 12 months". Journal of the European Academy of Dermatology and Venereology. 11 (2): 129–136. doi:10.1016/s0926-9959(98)00061-0. PMID 9784038.
- ↑ "Imedeen Prime Renewal 120s | Life Pharmacy New Zealand". www.lifepharmacy.co.nz. Retrieved 2023-02-27.
- 1 2 3 Harrison, Suzanne (2007-05-01). "Brand story: Imedeen". South China Morning Post. Retrieved 2022-10-06.
- ↑ "Pfizer To Acquire Ferrosan's Consumer Healthcare Business". Fierce Biotech. Retrieved January 1, 2023.
- ↑ "Frequently Asked Questions | IMEDEEN". IMEDEEN. Retrieved 2017-11-17.
- ↑ "Christy Turlington named Imedeen ambassador". independent. 15 January 2014. Retrieved 2022-10-06.
