scholarly journals Physiological and morphological changes in facial skin with aging. (II). A study on racial differences.

1989 ◽  
Vol 23 (1) ◽  
pp. 22-30 ◽  
Author(s):  
Motoji Takahashi ◽  
Hiroko Watanabe ◽  
Hiroko Kumagai ◽  
Yasuhisa Nakayama
Keyword(s):  
Racial Differences ◽  
Morphological Changes ◽  
Facial Skin

scholarly journals Physiological and morphological changes in facial skin with aging. (I). Age-related changes in the skin of Japanese women.

1989 ◽  
Vol 23 (1) ◽  
pp. 9-21 ◽  
Author(s):  
Hiroko Kumagai ◽  
Hiroko Watanabe ◽  
Toshie Kozu ◽  
Hiromi Noguchi ◽  
Motoji Takahashi
Keyword(s):  
Morphological Changes ◽  
Japanese Women ◽  
Facial Skin ◽  
Age Related ◽  
Age Related Changes

scholarly journals Regional Difference in Morphological Changes in Facial Skin Surface with Aging.

2001 ◽  
Vol 35 (2) ◽  
pp. 141-148 ◽  
Author(s):  
Takafumi Nishijima ◽  
Hiroyuki Ohsu ◽  
Takashi Kitahara ◽  
Yoshinori Takema
Keyword(s):  
Regional Difference ◽  
Morphological Changes ◽  
Skin Surface ◽  
Facial Skin

scholarly journals PRE-CANCER DISEASES OF THE MUCOUS MEMBRANE OF THE ORAL CAVITY, RED BORDER OF THE LIPS AND FACIAL SKIN

2019 ◽  
Author(s):  
Ирина Костина ◽  
Irina Kostina ◽  
Анна Епишова ◽  
Anna Yepishova ◽  
Сергей Григорьев ◽  
...  
Keyword(s):  
Continuing Education ◽  
Professional Training ◽  
Morphological Changes ◽  
Maxillofacial Surgery ◽  
Oral And Maxillofacial Surgery ◽  
Practical Training ◽  
Advanced Training ◽  
Facial Skin ◽  
Cancer Diseases

The manual is designed to provide methodological assistance to dentists-surgeons, maxillofacial surgeons and dentists-terapists during distance learning according to the program of additional professional training on the continuing education cycle “Selected Issues of Surgical Dentistry”, “Selected Issues of Oral and Maxillofacial Surgery”. The manual presents: classification of precancerous diseases, a brief description of clinical and morphological changes in the oral mucosa, red border lips, facial skin with different forms of precancer, the concept of "oncological alertness" is disclosed. The manual is illustrated. The advanced training course (PC) is aimed at improving the level of theoretical and practical training of dentists-surgeons, maxillofacial surgeons and dentists-terapists, expanding the possibilities of providing dental care.

Morphological Changes in the Rat Granulosa Cell Surface During Differentiation Induced by Estradiol and Gonadotropins

1977 ◽  
Vol 35 ◽  
pp. 484-485
Author(s):  
P. Bagavandoss ◽  
JoAnne S. Richards ◽  
A. Rees Midgley
Keyword(s):  
Cell Surface ◽  
Granulosa Cell ◽  
Morphological Changes ◽  
Follicular Development ◽  
Female Rats ◽  
Functional Changes ◽  
Group 4 ◽  
Group 3 ◽  
Group 5 ◽  
Group 2

During follicular development in the mammalian ovary, several functional changes occur in the granulosa cells in response to steroid hormones and gonadotropins (1,2). In particular, marked changes in the content of membrane-associated receptors for the gonadotropins have been observed (1).We report here scanning electron microscope observations of morphological changes that occur on the granulosa cell surface in response to the administration of estradiol, human follicle stimulating hormone (hFSH), and human chorionic gonadotropin (hCG).Immature female rats that were hypophysectcmized on day 24 of age were treated in the following manner. Group 1: control groups were injected once a day with 0.1 ml phosphate buffered saline (PBS) for 3 days; group 2: estradiol (1.5 mg/0.2 ml propylene glycol) once a day for 3 days; group 3: estradiol for 3 days followed by 2 days of hFSH (1 μg/0.1 ml) twice daily, group 4: same as in group 3; group 5: same as in group 3 with a final injection of hCG (5 IU/0.1 ml) on the fifth day.

Effect of verapamil on cytoplasmic distribution of granules and microfilaments in amphibian urinary bladder

1988 ◽  
Vol 46 ◽  
pp. 324-325
Author(s):  
A.J. Mia ◽  
L.X. Oakford ◽  
T. Yorio
Keyword(s):  
Urinary Bladder ◽  
Water Flow ◽  
Morphological Changes ◽  
Granular Cell ◽  
Cytosolic Calcium ◽  
Calcium Storage ◽  
Amphibian Urinary Bladder ◽  
Vesicular Membrane ◽  
High Concentrations ◽  
Cytoskeletal System

The amphibian urinary bladder has been used as a ‘model’ system for studies of the mechanism of action of antidiuretic hormone (ADH) in stimulating transepithelial water flow. The increase in water permeability is accompanied by morphological changes that include the stimulation of apical microvilli, mobilization of microtubules and microfilaments and vesicular membrane fusion events . It has been shown that alterations in the cytosolic calcium concentrations can inhibit ADH transmembrane water flow and induce alterations in the epithelial cell cytomorphology, including the cytoskeletal system . Recently, the subapical granules of the granular cell in the amphibian urinary bladder have been shown to contain high concentrations of calcium, and it was suggested that these cytoplasmic constituents may act as calcium storage sites for intracellular calcium homeostasis. The present study utilizes the calcium antagonist, verapamil, to examine the effect of calcium deprivation on the cytomorphological features of epithelial cells from amphibian urinary bladder, with particular emphasis on subapical granule and microfilament distribution.

Hydrated form of some clay minerals observed using a film sealed environmental cell

1978 ◽  
Vol 36 (1) ◽  
pp. 72-73
Author(s):  
N. Kohyama ◽  
K. Fukushima ◽  
A. Fukami
Keyword(s):  
Clay Minerals ◽  
Morphological Changes ◽  
Carbon Film ◽  
Electron Microscopic Observation ◽  
Adsorbed Water ◽  
Electron Microscopic ◽  
Hydrated Form ◽  
Thin Carbon ◽  
Environmental Cell ◽  
Thin Carbon Film

Since the interlayer or adsorbed water of some clay minerals are quite easily dehydrated in dried air, in vacuum, or at moderate temperatures even in the atmosphere, the hydrated forms have not been observed by a conventional electron microscope(TEM). Recently, specific specimen chambers, “environmental cells(E.C.),” have been developed and confirmed to be effective for electron microscopic observation of wet specimen without dehydration. we observed hydrated forms of some clay minerals and their morphological changes by dehydration using a TEM equipped with an E.C..The E.C., equipped with a single hole copper-microgrid sealed by thin carbon-film, attaches to a TEM(JEM 7A) with an accelerating voltage 100KV and both gas pressure (from 760 Torr to vacuum) and relative humidity can be controlled. The samples collected from various localities in Japan were; tubular halloysite (l0Å) from Gumma Prefecture, sperical halloysite (l0Å) from Tochigi Pref., and intermediate halloysite containing both tubular and spherical types from Fukushima Pref..

Ultrastructural Study of Rat Colon Following Psyllium Ingestion

1985 ◽  
Vol 43 ◽  
pp. 580-581
Author(s):  
F.G. Lightfoot ◽  
L.E. Grau ◽  
M.M. Cassidy ◽  
G.R. Tadvalkar ◽  
G.V. Vahouny
Keyword(s):  
Electron Microscopy ◽  
Morphological Changes ◽  
Large Population ◽  
Rat Colon ◽  
Gastrointestinal Disorders ◽  
Luminal Surface ◽  
Fecal Material ◽  
Transmission Electron ◽  
Morphologic Analysis ◽  
Irritable Bowel

Psyllium hydrophillic mucilloid is a natural gelling fiber consumed by a large population of our society. It is used as a bulk-producing laxative and in the treatment of gastrointestinal disorders such as “Irritable Bowel Syndrome”. The literature pertaining to the ultrastructural effects of this agent is sparse.This study documents morphological changes induced by psyllium. Animals fed a diet containing 2% psyllium for four weeks were subsequently sacrificed and processed for scanning and transmission electron microscopy. The colon contained fecal material combined with psyllium which conformed to the contour of the luminal surface. This mixture formed surface replicas of the intestinal mucosa. These replicas and their related colonic sites were processed for morphologic analysis.

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