Chapter 057 Photosensitivity and Other Reactions to Light (Part 5) pps

Chapter 057. Photosensitivity and Other Reactions to Light (Part 5) pps

Chapter 057. Photosensitivity and Other Reactions to Light (Part 5) pps

... Chapter 057. Photosensitivity and Other Reactions to Light (Part 5) Polymorphous Light Eruption After sunburn, the most common type of photosensitivity disease is polymorphous light eruption ... exposure. Phototoxicity and Photoallergy These photosensitivity disorders are related to the topical or systemic administration of drugs and other chemical...
Ngày tải lên : 07/07/2014, 01:20
  • 5
  • 329
  • 0
Chapter 057. Photosensitivity and Other Reactions to Light (Part 1) pps

Chapter 057. Photosensitivity and Other Reactions to Light (Part 1) pps

... penetrates to the dermis and is capable of altering structural and matrix proteins that contribute to photoaging of chronically sun- exposed skin, particularly in individuals of light complexion. ... between 290 and Photosensitivity occurs when a photon-absorbing chemical (chromophore) present in the skin absorbs incident energy, becomes excited, and transfers the absorbed...
Ngày tải lên : 07/07/2014, 01:20
  • 5
  • 399
  • 0
Chapter 057. Photosensitivity and Other Reactions to Light (Part 2) pps

Chapter 057. Photosensitivity and Other Reactions to Light (Part 2) pps

... extent in the Chapter 057. Photosensitivity and Other Reactions to Light (Part 2) Molecular Targets for UVR-Induced Skin Effects Epidermal DNA, predominantly in keratinocytes and in Langerhans ... released into the circulation from the bone marrow and the liver and are transported to the skin, where they absorb incident energy both in the Soret band, around 400...
Ngày tải lên : 07/07/2014, 01:20
  • 6
  • 283
  • 0
Chapter 057. Photosensitivity and Other Reactions to Light (Part 6) ppsx

Chapter 057. Photosensitivity and Other Reactions to Light (Part 6) ppsx

... persistent photosensitivity is known as chronic actinic dermatitis. These patients are typically elderly men with a long history of Chapter 057. Photosensitivity and Other Reactions to Light (Part ... energy, become photoexcited, generate ROS, and evoke cutaneous photosensitivity. The mechanism of porphyrin photosensitization is known to be photodynamic, or oxygen...
Ngày tải lên : 07/07/2014, 01:20
  • 5
  • 356
  • 0
Chapter 057. Photosensitivity and Other Reactions to Light (Part 7) docx

Chapter 057. Photosensitivity and Other Reactions to Light (Part 7) docx

... Fig. 57-1. Figure 57-1 Chapter 057. Photosensitivity and Other Reactions to Light (Part 7) Porphyria cutanea tarda is the most common type of human porphyria and is associated with decreased ... include an acute photosensitivity characterized by subjective burning and stinging of exposed skin that often An algorithm for the diagnosis of a patient with photo...
Ngày tải lên : 07/07/2014, 01:20
  • 5
  • 323
  • 0
Chapter 057. Photosensitivity and Other Reactions to Light (Part 8) pot

Chapter 057. Photosensitivity and Other Reactions to Light (Part 8) pot

... dioxide 25 Chapter 057. Photosensitivity and Other Reactions to Light (Part 8) Natural photoprotection is provided by structural proteins in the epidermis, particularly keratins and melanin. ... effects of long-term UV-B phototherapy and PUVA photochemotherapy mimic those seen in individuals with chronic sun exposure and include skin dryness, actinic keratoses,...
Ngày tải lên : 07/07/2014, 01:20
  • 6
  • 318
  • 0
Chapter 057. Photosensitivity and Other Reactions to Light (Part 3) doc

Chapter 057. Photosensitivity and Other Reactions to Light (Part 3) doc

... including the face, the neck, and the hands. Major risk factors include male sex, childhood sun exposures, older age, fair skin, and residence at latitudes closer to the equator. Whites of darker complexions ... but this is likely due to failure to control for confounding factors such as sunscreen stability and frequency of application. Since no prospective studies are availab...
Ngày tải lên : 07/07/2014, 01:20
  • 6
  • 421
  • 0
Chapter 027. Aphasia, Memory Loss, and Other Focal Cerebral Disorders (Part 5) pot

Chapter 027. Aphasia, Memory Loss, and Other Focal Cerebral Disorders (Part 5) pot

... difficulty interpreting and reacting to environmental sounds since primary auditory cortex and subcortical auditory relays are intact. Since auditory information cannot be conveyed to the language ... paranoid reactions are frequent in the acute stages. Cerebrovascular lesions are the most frequent cause. Chapter 027. Aphasia, Memory Loss, and Other Focal Cerebral Disorde...
Ngày tải lên : 06/07/2014, 13:20
  • 5
  • 356
  • 0
Chapter 027. Aphasia, Memory Loss, and Other Focal Cerebral Disorders (Part 11) pps

Chapter 027. Aphasia, Memory Loss, and Other Focal Cerebral Disorders (Part 11) pps

... Chapter 027. Aphasia, Memory Loss, and Other Focal Cerebral Disorders (Part 11) The Occipitotemporal Network for Face and Object Recognition: Prosopagnosia and Object Agnosia ... association areas of occipitotemporal cortex and then to other heteromodal and paralimbic areas of the cerebral cortex. Bilateral lesions in the fusiform and lingual gyri of the occipitot...
Ngày tải lên : 06/07/2014, 13:20
  • 5
  • 285
  • 0
Chapter 078. Prevention and Early Detection of Cancer (Part 1) pps

Chapter 078. Prevention and Early Detection of Cancer (Part 1) pps

... Smokeless tobacco is the fastest growing part of the tobacco industry and represents a substantial health risk. Chewing tobacco is a carcinogen linked to Chapter 078. Prevention and Early Detection ... prevention and early detection (also known as cancer control) to expand beyond the identification and avoidance of carcinogens. Specific interventions to prevent cancer in...
Ngày tải lên : 07/07/2014, 01:20
  • 5
  • 283
  • 0

Xem thêm

Từ khóa: