Growth, desquamation and involution of the vaginal epithelium of fetuses and children with a consideration of the related hormonal factors

1938 ◽  
Vol 62 (4) ◽  
pp. 427-451 ◽  
Author(s):  
Ludwig Fraenkel ◽  
George N. Papanicolaou
Keyword(s):  
Vaginal Epithelium ◽  
Hormonal Factors

Electron microscope study of the microgranules in human vaginal epithelium

1978 ◽  
Vol 36 (2) ◽  
pp. 568-569
Author(s):  
A. Campos ◽  
J. Vilches ◽  
J. Gomez
Keyword(s):  
Electron Microscope ◽  
Microscope Study ◽  
Intercellular Space ◽  
Electron Microscope Study ◽  
Vaginal Epithelium ◽  
Vaginal Mucosa ◽  
Secretory Phase ◽  
Cervical Epithelium ◽  
Keratinized Epithelium ◽  
Fertile Women

Microgranules have been described with different names in keratinized and in nonkeratinized epithelium. In keratinized epithelium it seems clear that the microgranules are lamellated bodies bounded by a membrane which empty their contents into the intercellular space. Their existence in nonkeratinized epithelium is more debatable. Until now the so-called microgranules have been described in nonkeratinized bucal, lingual and cervical epithelium. In the present work we describe the morphology and nature of such structures in human vaginal epithelium.Biopsies from the midlevel of the vaginal mucosa were taken from voluntary fertile women. The specimens were divided into three groups with four vaginal specimens. The first group was obtained in the folicular phase; those of the second in the postovulatory phase and, finally, the last group corresponded to the secretory phase.

Effects of Hypophysectomy on the Occurrence and Calcifiability of Matrix Vesicles in the Epiphyseal Growth Plate of Immature Rats

1980 ◽  
Vol 38 ◽  
pp. 578-579
Author(s):  
S. I. Coleman ◽  
W. J. Dougherty
Keyword(s):  
Growth Plate ◽  
Matrix Vesicles ◽  
Epiphyseal Growth Plate ◽  
Hard Tissue ◽  
Hormonal Factors ◽  
Post Surgery ◽  
Mineral Deposition ◽  
Thin Sectioning ◽  
Integral Role ◽  
Cellular Secretion

In the cellular secretion theory of mineral deposition, extracellular matrix vesicles are believed to play an integral role in hard tissue mineralization (1). Membrane limited matrix vesicles arise from the plasma membrane of epiphyseal chondrocytes and tooth odontoblasts by a budding process (2, 3). Nutritional and hormonal factors have been postulated to play essential roles in mineral deposition and apparently have a direct effect on matrix vesicles of calcifying cartilage as concluded by Anderson and Sajdera (4). Immature (75-85 gm) Long-Evans hooded rats were hypophysectomized by the parapharyngeal approach and maintained fourteen (14) days post-surgery. At this time, the animals were anesthetized and perfusion fixed in cacodylate buffered 2.5% glutaraldehyde. The proximal tibias were quickly dissected out and split sagittally. One half was used for light microscopy (LM) and the other for electron microscopy (EM). The halves used for EM were cut into blocks approximately 1×3 mm. The tissue blocks were prepared for ultra-thin sectioning and transmission EM. The tissue was oriented so as to section through the epiphyseal growth plate from the zone of proliferating cartilage on down through the hypertrophic zone and into the initial trabecular bone. Sections were studied stained (double heavy metal) and unstained.

Expression of keratins in mouse vaginal epithelium

1994 ◽  
Vol 56 (1-2) ◽  
pp. 0143-0151 ◽  
Author(s):  
Irma Beatriz Gimenez-Conti ◽  
Maureen Lynch ◽  
Denis Roop ◽  
Suchata Bhowmik ◽  
Pamela Majeski ◽  
...  
Keyword(s):  
Vaginal Epithelium

Influence of local progesterone on the number of langerhans cells in human vaginal epithelium

1998 ◽  
Vol 5 (1) ◽  
pp. 91A-91A ◽  
Author(s):  
F WIESER ◽  
J HOSMANN ◽  
K CZERWENKA ◽  
W TSCHUGGUEL ◽  
K PISCHINGER ◽  
...  
Keyword(s):  
Langerhans Cells ◽  
Vaginal Epithelium

BEFUNDE AM GENITALTRAKTUS DER RATTE NACH CORTICOTROPIN-INJECTION UND IHRE DEUTUNG UNTER BERÜCKSICHTIGUNG DES ZELLBILDES DER ADENOHYPOPHYSE

1959 ◽  
Vol XXXII (II) ◽  
pp. 167-176 ◽  
Author(s):  
Walter Schätzle
Keyword(s):  
Adult Female ◽  
Single Injection ◽  
Anterior Lobe ◽  
Vaginal Epithelium ◽  
Female Rats ◽  
Normal Adult ◽  
List Type

ABSTRACT In normal adult female rats a single injection of 5 IU corticotrophin was followed by a retention of glucoproteid material in the anterior lobe of the hypophysis and by impairment of the luteinization. In spayed adult female rats the same corticotrophin administration caused stratification and mucification of the vaginal epithelium.

HORMONAL FACTORS IN TUMOURIGENESIS AND TUMOUR GROWTH

1960 ◽  
Vol 34 (2_Suppla) ◽  
pp. S187-S188
Author(s):  
O. Mühlbock
Keyword(s):  
Tumour Growth ◽  
Hormonal Factors

Hormonal factors and type 2 diabetes risk in women: a 22 year follow-up study on more than 83 000 women from the E3N cohort study

2019 ◽  
Author(s):  
Sopio Tatulashvili ◽  
Gaelle Gusto ◽  
Beverley Balkau ◽  
Emmanuel Cosson ◽  
Fabrice Bonnet ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Cohort Study ◽  
Diabetes Risk ◽  
Hormonal Factors ◽  
Follow Up Study

Local hormonal factors (intracrine, autocrine, and paracrine) in hypertension.

Hypertension ◽  
1991 ◽  
Vol 18 (3_Suppl) ◽  
pp. I58-I58 ◽  
Author(s):  
O. A. Carretero ◽  
A. G. Scicli
Keyword(s):  
Hormonal Factors

scholarly journals Association between Oral Contraceptives and cutaneous melanoma: a systematic review and metanalysis

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
I Giacchetta ◽  
M Chiavarini ◽  
G Naldini ◽  
R Fabiani
Keyword(s):  
Systematic Review ◽  
Malignant Melanoma ◽  
Publication Bias ◽  
Oral Contraceptives ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Cutaneous Malignant Melanoma ◽  
Hormonal Factors ◽  
Increased Risk

Abstract Background The probability of developing invasive cutaneous malignant melanoma (CMM) is higher in women than in men up until the age of 49. Several studies investigated the association between hormonal factors and CMM. The aim of this systematic review and meta-analysis is to summarize the evidence on the association between Oral Contraceptives (OC) and the risk of CMM. Methods This review and meta-analysis follow the PRISMA guidelines. A systematic literature search was conducted on Medline and Web of Science until December 2019. Studies were eligible if reported a risk estimate for the association between OC and CMM. Heterogeneity testing was performed using Cochran's Q and I2 statistics. Publication bias was assessed by Egger's test and Begg's test. Meta-analysis was performed using random effect model. Results The results of the pooled analysis of all 32 studies showed no significant association between OC and the risk of CMM (OR 1.02; 95% CI 0.94-1.11; I2=39.32%, p = 0.013). The stratified analyses by study design found no significant association between OC and the risk of CMM neither in the 18 case-control studies (OR 1.02; 95% CI 0.87-1.21; I2=56.91%, p = 0.002) nor in the 14 cohort studies (OR 1.04; 95% CI 0.98-1.11; I2=0.00%, p = 0.557). No significant publication bias could be detected by Egger's test or Begg's test. Conclusions This meta-analysis of available literature suggests no significant association between OC and the risk of developing CMM. Further investigations are needed to evaluate the possible relationship of OC use and other hormonal factors potentially contributing to the increased risk of CMM in women during their reproductive years. Key messages Oral contraceptives (OC) do not significantly contribute to the risk of Cutaneous Malignant Melanoma (CMM). Further studies are needed to investigate the potential role of other hormonal factors in the increased probability of developing CMM in women during their reproductive years.

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