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Related Concept Videos

The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
Renewal of Skin Epidermal Stem Cells01:12

Renewal of Skin Epidermal Stem Cells

The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular cells,...
Reticular Dermis01:15

Reticular Dermis

The papillary and reticular dermis are the two layers of the dermis. They are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. The dermal papillae extending into the epidermis belong to the papillary layer, whereas the dense collagen fiber bundles below belong to the reticular layer.
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
Aging01:26

Aging

Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Skin Diseases and Disorders01:23

Skin Diseases and Disorders

Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Changes in Skin Color: Clinical Perspectives01:14

Changes in Skin Color: Clinical Perspectives

The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...

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Related Experiment Videos

[Dermatoendocrinology. Skin aging].

E Makrantonaki1, C C Zouboulis

  • 1Klinik für Dermatologie, Venerologie und Allergologie/Immunologisches Zentrum, Städtisches Klinikum Dessau, Auenweg 38, 06847, Dessau, Germany. emakrantonaki@yahoo.com

Der Hautarzt; Zeitschrift Fur Dermatologie, Venerologie, Und Verwandte Gebiete
|May 19, 2010
PubMed
Summary

Hormone imbalances significantly impact skin aging, wound healing, and lipogenesis. Declining hormone levels with age negatively affect skin physiology, necessitating research for disease prevention in an aging population.

Related Experiment Videos

Area of Science:

  • Endocrinology
  • Dermatology
  • Molecular Biology

Context:

  • Hormonal fluctuations significantly affect skin structure and function.
  • Aging is associated with decreased levels of key hormones like growth hormone and sex steroids.
  • These hormonal changes negatively impact physiological processes and contribute to age-related skin disorders.

Purpose:

  • To explore the molecular mechanisms underlying skin aging.
  • To understand the role of hormone imbalances in skin health.
  • To identify strategies for preventing age-associated skin diseases.

Summary:

  • Hormone imbalances profoundly influence skin morphology, physiology, wound healing, and lipogenesis.
  • Aging leads to a decline in circulating hormones, impairing skin functions and potentially causing disorders.
  • Understanding these molecular mechanisms is crucial for addressing age-related skin conditions.

Impact:

  • Provides insights into the hormonal regulation of skin aging.
  • Highlights the importance of hormone balance for maintaining skin health.
  • Informs strategies for preventing and managing age-associated skin diseases.