Histology of moose (Alces alces andersoni) interdigital glands and associated green hairs

1985 ◽  
Vol 63 (4) ◽  
pp. 899-911 ◽  
Author(s):  
David M. Chapman
Keyword(s):  
Sweat Gland ◽  
Sebaceous Gland ◽  
Chemical Nature ◽  
Alces Alces ◽  
Sweat Glands ◽  
Secretory Cycle ◽  
General Body ◽  
Covalently Bonded ◽  
Coloring Matter ◽  
Transmittance Peak

The interdigital glands of the moose (Alces alces andersoni) are distinguished from the neighboring skin by the lighter epidermis, green hairs, and huge sebaceous and sweat glands. In the glandular area is a shallow fore pocket and deep hind pocket in both sexes and all ages. Special 250 μm thick sections helped reveal the pilosebaceous–sweat gland unit in both the gland and general body surface. The secretory cycle of the apocrine cells and the cycle's relationship to the lipofuscin cycle are described. Macrophages ingest lipofuscin from moribund apocrine cells. The site of the dead apocrine cell is replaced by neighboring epithelial cells spreading out to fill the gap. The green hairs have a transmittance peak at 515 nm. The chemical nature of the coloring matter is unknown but is probably an organic compound covalently bonded to keratin. The green secretion of the sweat gland in some way dyes the hair. In both sexes the sebaceous gland volume of the gland increases at the rut.

scholarly journals The Sweat Glands and Hair Follicles of European Cattle

1972 ◽  
Vol 25 (3) ◽  
pp. 585 ◽  
Author(s):  
D Mcewan Jenkinson ◽  
T Nay
Keyword(s):  
Hair Follicle ◽  
Sweat Gland ◽  
Hair Follicles ◽  
Sweat Glands ◽  
Mean Values ◽  
The Mean ◽  
European Cattle

Measurements were made on the skins of 1363 cattle from different European breeds. The mean values of these measurements have been tabulated for each breed and the skin types present in each breed or group of breeds have been determined using sweat gland shape (LID) and hair follicle depth (FrY) as the principal bases of comparison.

scholarly journals RECURRENT MALIGNANT APOCRINE SWEAT GLAND CARCINOMA - A CASE REPORT

2021 ◽  
pp. 1-2
Author(s):  
AKHILA JANGA ◽  
MOHAMMED ZIAUDDIN ◽  
RAVI CHANDER PATLOLLA
Keyword(s):  
Local Excision ◽  
Wide Local Excision ◽  
Sweat Gland ◽  
Early Stage ◽  
Case Reports ◽  
Case Series ◽  
Biological Behavior ◽  
Sweat Glands ◽  
Second Phase ◽  
Apocrine Carcinoma

Apocrine carcinomas arise from normal or modified sweat glands. The slow-growing nature and rarity of sweat gland carcinomas complicate their diagnosis at the early stage. The incidence of PASGC is quite low at 0.0049–0.0173 cases/100,000 persons/year. A 21-year-old male patient was presented in February 2016 with small solitary mass in the right axilla with mild tenderness and pain. Underwent wide local excision and axillary dissection at our institution followed by adjuvant radio and chemotherapy. Later on, after 18 months developed local recurrence and was planned for re-surgery and a second phase of palliative radiotherapy. After a year, presented to the hospital with pin sized irregular swelling in the axilla. Sweat gland carcinomas which are rarely diagnosed create a pathological dilemma due to their unpredicted biological behavior. However, wide local excision with or without nodal dissection is the primary treatment till date. In this particular case even though patient had underwent axillary node dissection, patient had recurrence twice with no distant metastasis which is a key point to be noted. Thorough study of the available apocrine carcinoma case reports or case series, the better knowledge regarding the apocrine carcinoma can be obtained.

Effect of physical training on peripheral sweat production

1988 ◽  
Vol 65 (2) ◽  
pp. 811-814 ◽  
Author(s):  
M. J. Buono ◽  
N. T. Sjoholm
Keyword(s):  
Physical Training ◽  
Sweat Gland ◽  
Sweat Rate ◽  
Secretory Activity ◽  
Sweat Glands ◽  
Trained Subjects ◽  
Peripheral Mechanism ◽  
Sweat Production ◽  
Sedentary Women

The purpose of this study was to determine the in vivo secretory activity of sweat glands from sedentary and trained subjects. Peripheral sweat production was determined using pilocarpine iontophoresis in 40 volunteers (10 sedentary men, 10 endurance-trained men, 10 sedentary women, 10 endurance-trained women). Peripheral sweat rate was significantly (P less than 0.05) greater in trained men [6.9 +/- 0.6 (SE) g.m2.min-1] and women (6.1 +/- 0.7) compared with sedentary men (3.1 +/- 0.5) and women (2.5 +/- 0.4). Furthermore, peripheral sweat rate was significantly correlated (r = 0.73) with maximal O2 uptake. The above two findings would suggest that physical training improves the secretory activity of the human sweat gland. Such a result supports previous findings that have suggested that the potentiation in sweating seen after training is achieved via a peripheral mechanism. In addition, several gender-related differences were found in the sudorific response of men and women. Specifically, women have a significantly greater sweat gland density, whereas men have a greater sweat production per gland.

Sweating rate at different body regions in cattle and its correlation with some quantitative components of sweat gland volume for a given area of skin

1969 ◽  
Vol 20 (2) ◽  
pp. 395 ◽  
Author(s):  
YS Pan ◽  
SM Donegan ◽  
RH Hayman
Keyword(s):  
Population Density ◽  
Negative Correlation ◽  
Sweat Gland ◽  
Statistical Significance ◽  
Sweat Glands ◽  
Body Region ◽  
Sweating Rate ◽  
Positive Correlation ◽  
Gland Volume ◽  
Body Regions

Sweating rates at five body regions on four Jersey and four Sahiwal x Jersey crossbred heifers were measured in a hot room under three treatments differing in temperature and duration. The correlations between sweating rate and some quantitative components of sweat gland volume for a given area of skin were examined. Differences in sweating rate between body regions, interactions between breed and body region in sweating rate, and differences in sweating rate for the various treatments were all shown to be statistically significant. There was no significant interaction between body regions and treatment in sweating rate.Between body regions within an animal, there was a positive correlation between sweat gland population density and sweating rate and a negative correlation between mean sweat gland volume and sweating rate. This negative correlation was associated with the fact that regions with high sweat gland population density also tended to have smaller sweat glands and vice versa. Indications of a positive correlation between the total sweat gland volume per unit area and sweating rate were also found, though none of these approached statistical significance.

Selecting Merino rams for ability to withstand infertility caused by heat. 1. Anatomy and functional activity of the scrotum

1971 ◽  
Vol 11 (49) ◽  
pp. 137 ◽  
Author(s):  
DG Fowler ◽  
GMH Waites
Keyword(s):  
Surface Area ◽  
Heat Tolerance ◽  
Functional Activity ◽  
Sweat Gland ◽  
Sweat Glands ◽  
Fluid Loss ◽  
Fibre Density ◽  
Scrotal Heating

Merino rams selected for (Folds Plus) and against (Folds Minus) skin wrinkle have been used in a study of scrotal heat tolerance. The type selected against skin wrinkle (Folds Minus) showed a higher scrotal fluid loss and sweat gland and fibre density than the Folds Plus type. Folds Minus rams had smaller scrotal sweat glands which discharged more frequently than those of the Folds Plus rams during early periods of scrotal heating. Scrotal heat tolerance was seen to increase with increases in scrotal surface area. These findings are discussed in terms of the light they shed on the problem of identifying the features that characterize high scrotal heat tolerance in Merino rams

Electric response in the mammary gland

1960 ◽  
Vol 15 (3) ◽  
pp. 511-514 ◽  
Author(s):  
Alexander Forbes ◽  
Marjorie Neyland ◽  
Sally Fox
Keyword(s):  
Mammary Gland ◽  
Sweat Gland ◽  
Myoepithelial Cells ◽  
Emotional Reaction ◽  
Emotional Reactions ◽  
Sweat Glands ◽  
Electric Response ◽  
Slow Response ◽  
Indirect Control ◽  
Palm Of The Hand

Our previous investigations have indicated that ‘let-down’ sensation in the mammary gland in nursing, or on injection of Pituitrin, is accompanied by slow electric response. This was believed to emanate from secreting-gland cells or from contractile myoepithelial cells. Indirect control indicated that sweat-gland activity, related to emotional reaction, played little part in electric response recorded from the breast. We have controlled this question of sweat-gland participation in observed response by recording simultaneously from the palm of the hand and from the areola in a non-lactating subject. It was found that spoken words evoking emotional reactions were accompanied by large electric responses from the palm, but from the areola there were either no responses or very small inverse deflections, presumably due to sweat glands in the skin of the thorax. Observations on lactating subjects showed that during nursing occasional deflections in the palmar record resembled those evoked in word tests, but in no case did the palmar record show a slow response synchronized with that recorded from the areola during the letdown. From these observations we conclude that sweat-gland reactions play little part in the characteristic let-down electric response led off from the areola. This must arise from a different source, presumably either the myoepithelial cells, the secreting cells, or both. Submitted on January 14, 1960

Some skin characters in five breeds of European (Bos taurus) dairy cattle

1963 ◽  
Vol 14 (2) ◽  
pp. 294 ◽  
Author(s):  
T Nay ◽  
RH Hayman
Keyword(s):  
Dairy Cattle ◽  
Layer Thickness ◽  
Sweat Gland ◽  
Bos Taurus ◽  
Unit Area ◽  
Diameter Ratio ◽  
Sweat Glands ◽  
Skin Thickness ◽  
Layer Depth ◽  
Gland Volume

Observations were made of a number of skin characters in five breeds of European (Bos taurus L.) dairy cattle. Skin samples were taken from the cattle in January and July. There were differences between breeds in sweat gland volume and length! diameter ratio, in skin and papillary layer thickness, in the ratio skin thickness/papillary layer thickness, and in the degree of shrinkage in transverse sections cut from the papillary layer. There were no differences between breeds in density of follicle population (and hence sweat glands) per unit area of skin. Sweat gland volume, skin thickness, and papillary layer thickness were larger in winter than in summer, but there were no such differences for sweat gland length/ diameter ratio, the ratio skin thickness/papillary layer thickness, and follicle population density. The only significant overall correlations between characters were those between sweat gland volume and sweat gland length/diameter ratio, and sweat gland volume and papillary layer depth.

407. The number of sweat glands in the helix of the cow's ear and the milk yield

1950 ◽  
Vol 17 (1) ◽  
pp. 22-36 ◽  
Author(s):  
J. D. Findlay ◽  
A. Myfanwy Goodall ◽  
S. H. Yang
Keyword(s):  
Surface Area ◽  
Milk Yield ◽  
Sweat Gland ◽  
Unit Area ◽  
Sweat Glands ◽  
Young Calf

1. A study has been made of the distribution of the so-called sweat glands in the ears of Ayrshire cattle.2. The number of sweat glands per unit area of skin in the ear was found to vary greatly from one part of the ear to another and did not appear to be related to the milk yield. It is concluded that it is impossible to use the sweat-gland count in the ear as an indication of the milk-producing capacity of Ayrshire cattle.3. The number of sweat glands per unit area in the ear of the very young calf was found to be greater than in the fully grown cow, the number being roughly inversely proportional to the surface area of the ear.4. These findings for Ayrshire cattle are contrary to those published by a number of other workers for cattle of the Red German breed, who claim that any portion of the ear can be used to obtain a sweat-gland count which is closely correlated with milk yield.

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