Size of sweat glands in shorthorn strains and Zebu x Shorthorn crossbred cattle

1957 ◽  
Vol 8 (4) ◽  
pp. 385 ◽  
Author(s):  
T Nay ◽  
DF Dowling

A relatively simple technique for measuring the size of apocrine glands in biopsy cattle-skin sections was shown to be reliable. Duplicate skin samples were compared and the repeatability of the sweat gland size measurements found to be 81.0 per cent., and that of density 95 per cent. There were highly significant differences in sweat gland size between strains of cattle, and between cattle within strains.

2010 ◽  
pp. 4676-4682 ◽  
Author(s):  
Alison Layton

Cutaneous glands in humans include holocrine or sebaceous glands and merocrine or sweat glands. Merocrine glands are subdivided into apocrine, eccrine, and apoeccrine glands. Disorders of each of these cutaneous glands have been associated with disease. Apocrine glands in adults are found predominantly in the axillae and anogenital regions, with a few located in the ear canal (ceruminous glands) and eyelids (Moll’s glands). Associated disorders include hidradenitis suppurativa, Fox–Fordyce disease, bromhidrosis, trimethylaminuria, and chromhidrosis....


1966 ◽  
Vol 19 (4) ◽  
pp. 607 ◽  
Author(s):  
AV Schleger

The morphology of hair follicles has been studied in 23 Africander-Hereford crossbred yearlings. Eleven hair growth phases were recognized as a result of work on two animals. The piloapocrine units representing each phase have been illustrated by tracings. The mean length, diameter, length-diameter ratio, and area of sweat glands corresponding to each phase have been tabulated and illustrated.


1958 ◽  
Vol 9 (3) ◽  
pp. 385 ◽  
Author(s):  
RH Hayman ◽  
T Nay

Seasonal variation in sweat gland volume is reported in two breeds of Zebu dairy cattle. Changes which occurred in the volume of sweat glands in Jersey and in Zebu x Jersey cattle, as the result of sweating induced by exercise, are described. The crossbred cattle, which had larger sweat glands than the Jerseys, sweated at a greater rate, and had a smaller rise in rectal temperature, which returned more rapidly to normal. It is suggested that there is a relationship between sweat gland volume and activity, and that the seasonal changes in volume observed in the two Zebu breeds are largely due to changes in ambient temperature.


1987 ◽  
Vol 252 (1) ◽  
pp. R181-R187 ◽  
Author(s):  
K. Sato ◽  
F. Sato

Functional characteristics of isolated single human axillary apoeccrine sweat glands have been studied using in vitro sweat induction methods. Sustained copious clear fluid secretion was evoked by methacholine (MCh), epinephrine (EP), isoproterenol (ISO), and phenylephrine (PL) in decreasing order in a pharmacologically specific manner. Apoeccrine glands showed a higher cholinergic sensitivity than eccrine sweat glands, as shown by the apparent association constant for MCh of 2.7 X 10(-7) M compared with 2.1 X 10(-6) M for the axillary eccrine sweat gland. The average total sweat rate of the apoeccrine gland for a 30-min period was sevenfold higher than that of the eccrine sweat gland. In contrast, isolated apocrine glands showed intermittent pulsatile turbid sweat secretion in response to MCh or EP. The Na+ and K+ concentration of apoeccrine glands was nearly isotonic, whereas those of apocrine sweat was 120-140 mM for Na+ and 10-20 mM for K+. Apoeccrine ductal Na+ absorption was also observed in the apoeccrine glands and was no more efficient than that of the axillary eccrine sweat gland. Thus apoeccrine sweat glands are functionally and pharmacologically distinct from axillary apocrine glands and significantly contribute to overall axillary sweating in humans.


1972 ◽  
Vol 25 (3) ◽  
pp. 585 ◽  
Author(s):  
D Mcewan Jenkinson ◽  
T Nay

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.


1998 ◽  
Vol 23 (2) ◽  
pp. 281-282 ◽  
Author(s):  
S. DE FONTAINE ◽  
J. VAN GEERTRUYDEN ◽  
E. VANDEWEYER

An apocrine hidrocystoma occurring on the finger of a 55-year-old man is reported. The lesion presented as a solitary, painless cystic nodule on the dorsal aspect of the middle phalanx of the index finger. Apocrine hidrocystoma is a benign tumour developed from apocrine sweat glands, but the location of the lesion was, however, not consistent with reported locations of apocrine glands in the adult.


Author(s):  
AKHILA JANGA ◽  
MOHAMMED ZIAUDDIN ◽  
RAVI CHANDER PATLOLLA

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.


2019 ◽  
Vol 32 (1) ◽  
pp. 159-161
Author(s):  
Carlos López-Figueroa ◽  
Mariano Domingo ◽  
Bernat Martí ◽  
Enric Vidal ◽  
Joaquim Segalés

Apocrine cystomatosis is a rare condition characterized by clusters of cystically dilated sweat glands or other specialized apocrine glands. Cystic dilation of cutaneous sweat glands has been described in humans, dogs, and cats, but not in pigs, to our knowledge. We describe herein linear, brown, colloid-filled cavities < 1 cm diameter within the subcutaneous fat of the entire dorsal region of carcasses of three 6-mo-old pigs. These incidental findings were detected during meat inspection in 3 different slaughterhouses in Catalonia, Spain. Histopathology revealed multiple cystic cavities lined by flattened glandular epithelium, filled with proteinaceous material, and corresponding to cystic hyperplasia of sweat glands.


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