Sebaceous glands produce sebum that contains: triglycerides, esters of cholesterol, and sometimes even pure cholesterol, squalene and esters of wax. Microvascular transplantation exposed the tissue of free flaps to the temporary ischemia and anaerobic metabolism, inflammatory, denervative and reinnervative processes. The sebaceous glands of the free flaps were also exposed to the action of physiopathologic processes during the micro vascular transfer. Because of that, the function of the sebaceous glands of the transplanted free flaps was estimated compared to the function of the sebaceous glands of the recipients and donor's region environment. The investigation of the sebaceous glands of free flaps function has been performed in 32 wounded patients at the Clinic for Plastic Surgery and Burns, and Institute for Medical Biochemistry of the Military Medical Academy. All the wounded have undergone the microvascular transplantation of the cutaneous, myocutaneous and osteocutaneous flaps. Dry residue in either of the soluble substances was measured in the period from six to thirty six months after the transplantation. The obtained results indicated that the function of the sebaceous glands of the transferred flaps 25.36 months after the transplantation was weaker than the function of the sebaceous glands of the recipients and donor's region's environment and amounted to 98% of the function of the sebaceous glands of the recipient is region's environment.
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Transl Vis Sci Technol
January 2025
Johnson & Johnson Vision Care, Inc., Jacksonville, FL, USA.
Purpose: The objective of this three-phase study was to develop a model of mild to moderate evaporative dry eye to be used to evaluate tear film stability endpoints during product development.
Methods: Rabbits were sedated prior to ophthalmic cautery of meibomian gland orifices. The orifices of eyelid meibomian glands were half-cauterized (to yield obstruction of every other meibomian gland orifices), fully cauterized (to yield obstruction of all meibomian gland orifices), or untreated.
Clin Cosmet Investig Dermatol
January 2025
Department of Basic Biomedical Science, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Sosnowiec, Poland.
Purpose: The aim was to quantitatively evaluate the effectiveness of LED light therapy combined with photoacceptor substances having anti-acne properties in reducing the symptoms of acne vulgaris.
Patients And Methods: 15 subjects aged 20 to 24 who suffered from moderate or severe acne lesions. The treatments were performed using a LED device (465-880 nm).
Front Oncol
January 2025
Department of Dermatovenereology, Chengdu Second People's Hospital, Chengdu, Sichuan, China.
Nevus sebaceous (NS) is a congenital hamartoma characterized by the presence of skin structures, including the epidermis, sebaceous glands, and hair follicles. NS predominantly occurs on the scalp and has the potential to give rise to secondary tumors, with a small proportion being malignant; the most frequently observed malignant tumor associated with NS is basal cell carcinoma. In this report, we retrospectively present four cases of sebaceous nevus on the scalp complicated by basal cell carcinoma.
View Article and Find Full Text PDFJ Cosmet Dermatol
January 2025
Cosmetic Research Center, School of Chemical and Material Engineering, Jiangnan University, Wuxi, China.
Background: Excessive lipogenesis of the skin triggers some dermatological concerns, such as enlarged pores, acne, and blackheads. Although topical drug treatments can offer temporary relief, their prolonged usage may lead to side effects of dryness, irritation, or allergic reactions. Consequently, the development of safer and efficacious ingredients in cosmetics for managing sebum overproduction represents a significant yet challenging endeavor.
View Article and Find Full Text PDFEar Nose Throat J
January 2025
Department of Otolaryngology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, P.R. China.
Chondroid syringoma, a mixed tumor of the skin, is an acquired hamartoma that differentiates into hair follicles, sebaceous glands, and apocrine sweat glands. Chondroid syringoma in the ear region is exceptionally rare. However, we present 2 cases of ear chondroid syringoma: 1 involving multiple lesions in the external auditory canal and the other including a single lesion behind the auricle.
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