scholarly journals Anatomopathological Evaluation of Young Bulls (Bos taurus) Testicles Submitted to Immunocastration

2019 ◽  
Vol 47 (1) ◽  
Author(s):  
Jéssica Aline Withoeft ◽  
Maísa Chicocca ◽  
Fábio Santiani ◽  
Leonardo Silva Da Costa ◽  
Karina Aline Mateus ◽  
...  
Keyword(s):  
Sertoli Cells ◽  
Seminiferous Tubules ◽  
Total Size ◽  
Scrotal Circumference ◽  
Testicular Weight ◽  
Microscopic Evaluation ◽  
Significant Difference ◽  
Cell Atrophy ◽  
Grade 3 ◽  
Testicular Degeneration

Background: Immunocastration is a less invasive and painless procedure compared to surgical castration, which causes greater stress to animals, especially when performed improperly. Immunocastration stimulates the production of antibodies against Gonadotropin-Releasing Hormone (GnRH), temporarily blocking the hormone production by the male gonads. Anatomopathological evaluation of animals submitted to immunocastration with the establishment of different degrees of testicular degeneration helps to evaluate the efficacy of the different dose ranges used for this procedure. Because of the scarcity of information about this procedure in young bulls, the study aimed to compare the immunocastrated and non-castrated animals.Materials, Methods & Results: Eighteen Angus-Limousin bulls were used from weaning (7 ± 1 months) to slaughtering (15 ± 1 months) with the establishment of two groups composed of nine non-castrated (NC) and nine immunocastrated (IC) animals. In the IC group, three doses of GnRH synthesis inhibitor vaccine (Bopriva®) were applied on days 0 (weaning), 87 and 223. At slaughter, scrotal circumference, weight (kg), width (cm), length (cm) and total size (width x length) of the testicles were obtained, then were routinely processed for histopathological analysis. Four degrees of testicular degeneration was established: grade 0 (no changes), grade 1 (mild), grade 2 (moderate) and grade 3 (severe). Statistical analysis was performed using Student's t-test to compare the means of macroscopic variables. The scrotal circumference started to decrease in the IC animals on day 132, with a certain growth from day 194. There was a significant difference between the two groups for width (P = 0.001), length (P = 0.004), total size (P = 0.003) and scrotal circumference (P = 0.04). Testicles of the IC group tended to be lighter (P = 0.06). The final difference between the groups was 6.3 cm for scrotal perimeter, with respective averages of 27.44 cm and 33.77 cm for the IC and NC group, respectively. In the microscopic evaluation, NC animals obtained grade 0. In the IC animals, 33.33% (3/9) had degeneration grade 1 with slight basement membrane tortuosity and Sertoli cell atrophy, 33.33% (3/9) obtained grade 2 with moderate tortuosity and thickening of seminiferous tubules, Sertoli and Leydig cell atrophy, and absence of spermatogenesis and 33.33% (3/9) reached grade 3, with decreased seminiferous tubules and a severe and diffuse atrophy of Leydig and Sertoli cells and complete absence of spermatogenesis, with a 1:5 ratio in seminiferous tubule diameter between NC and IC grade 3 animals, respectively.Discussion: There was a significant difference in several testicular macroscopic aspects between the two groups, similar to values using eight months old field-bred animals, with a difference of 8.78 cm between groups, also with the use of three doses of Bopriva. The only macroscopic variable that showed just a tendency of difference between the groups was testicular weight, whereas, in a study with crossbred animals with nine months old, there was a difference of 152 g in testicular weight between groups. Histologically, in immunocastrated two-year-old Nelore cattle, 85% demonstrated a total absence of spermatogenesis and 15% had a partial reduction, suggesting functional recovery of Sertoli cells after the last vaccination booster or partial inhibition of spermatogenesis. In this study, 90-day dose intervals produced effective immunization during 105 days, which is the suggested period for the third dose. The anatomopathological analysis proved to be effective for the comparison between the groups and the degree of the promoted degeneration.

scholarly journals Efek Serbuk Kunyit dan Kurkumin pada Spermatogenesis Mencit (Mus musculus) yang Diberi Minuman Beralkohol

2021 ◽  
Vol 6 (2) ◽  
pp. 154-160
Author(s):  
Helena Chika Valencia Hanisa ◽  
Tyas Rini Saraswati ◽  
Silvana Tana
Keyword(s):  
Analysis Of Variance ◽  
Mus Musculus ◽  
Alcoholic Beverages ◽  
Seminiferous Tubules ◽  
Treatment Groups ◽  
Alcohol Control ◽  
Randomized Design ◽  
Testicular Weight ◽  
Significant Difference ◽  
Spermatogonia Cells

Kunyit mengandung senyawa kurkumin yang dapat digunakan sebagai zat antiinflamasi dan membantu memperbaiki sel-sel yang rusak. Tujuan dari penelitian ini menganalisis pengaruh serbuk kunyit dan kurkumin pada jumlah dan ukuran sel spermatogonium; spermatosit primer; dan spermatosit sekunder; bobot testis serta diameter tubulus seminiferus Mus musculus yang diberi minuman beralkohol. Penelitian ini merupakan penelitian eksperimental dengan Rancangan Acak Lengkap (RAL), menggunakan 12 ekor Mus musculus jantan yang dibagi kedalam 4 kelompok perlakuan dan 3 kali ulangan. R0 merupakan kontrol, R1 kontrol alkohol, R2 pemberian serbuk kunyit sebanyak 0,1 mg/hari, R3 pemberian kurkumin sebanyak 0,01 mg/hari. Perlakuan diberikan selama 30 hari. Data penelitian dianalisis menggunakan analysis of variance (ANOVA) pada taraf kepercayaan 95%. Berdasarkan hasil penelitian yang diperoleh dapat disimpulkan bahwa tidak terdapat perbedaan bermakna (p>0.05) pada jumlah spermatogonium dan ukuran sel (spermatogonium, spermatosit primer, dan spermatosit sekunder), namun terdapat perbedaan bermakna pada (P<0,05) pada bobot testis, diameter tubulus seminiferus dan jumlah sel (spermatosit primer, dan spermatosit sekunder). Turmeric contains curcumin compounds that can be used as anti-inflammatory substances and help repair damaged cells. The purpose of this study was to analyze the effect of turmeric powder and curcumin on the number and size of spermatogonia cells; primary spermatocytes; and secondary spermatocytes; testicular weight and diameter of the seminiferous tubules of Mus musculus given alcoholic beverages. This study is an experimental study with a completely randomized design (CRD), using 12 male Mus musculus which were divided into 4 treatment groups and 3 replications. R0 is control, R1 is alcohol control, R2 is 0.1 mg/day of turmeric powder, R3 is 0.01 mg/day of curcumin. The treatment was given for 30 days. The research data were analyzed using analysis of variance (ANOVA) at the 95% confidence level. Based on the results obtained, it can be concluded that there is no significant difference (p>0.05) in the number of spermatogonia and cell size (spermatogonia, primary spermatocytes, and secondary spermatocytes), but there is a significant difference (P<0.05) in testicular weight, diameter of the seminiferous tubules and the number of cells (primary spermatocytes, and secondary spermatocytes).

Secretion of transferrin in ovine seminiferous tubule cell cultures in response to FSH: influence of breed, season of birth and age of lambs

1993 ◽  
Vol 5 (1) ◽  
pp. 83 ◽  
Author(s):  
C Monet-Kuntz ◽  
I Fontaine
Keyword(s):  
Cell Cultures ◽  
Dose Response ◽  
Sertoli Cells ◽  
Seminiferous Tubule ◽  
Seminiferous Tubules ◽  
Testis Weight ◽  
Season Of Birth ◽  
Tubule Cell ◽  
Response Curves ◽  
Testicular Weight

The response of lamb Sertoli cells to follicle stimulating hormone (FSH) was investigated by measuring transferrin secretion in seminiferous tubule cell cultures throughout the non-pubertal and the prepubertal periods. Cells could be cultured from birth until they attained a testicular weight of 19 g. The characteristics of individual dose-response curves were compared according to the breed, season of birth and testicular weight of the lambs. At the same season of birth and within a given testis weight range, dose-response curves of Romanov and Ile-de-France lambs were similar. Within a given testis weight range, spring-born animals exhibited a higher maximal transferrin secretion than autumn-born lambs, but the ED50 was similar. The main factor of variation of the dose-response curve parameters was the testicular weight of the lambs: the amplitude of FSH response increased 3-fold from a testicular weight of 6 g onwards, i.e. from the appearance of spermatogonia in seminiferous tubules. The ED50 increased 5-fold from 11 g onwards, i.e. from the beginning of the prepubertal period. Thus, Sertoli cells become less sensitive to FSH as spermatogenesis develops in seminiferous tubules. This phenomenon is largely the result of higher phosphodiesterase activity and is greatly reduced by 1-methyl-3-isobutyl-xanthine (MIX).

scholarly journals EFFECT OF ERYTHROPOIETIN ADMINISTRATION ON THE AMOUNT OF SPERMATOGONIUM, SERTOLI CELL, AND LEYDIG CELL ON RATS TESTIS (WISTAR STRAIN) AFTER VAS DEFERENS LIGATION RELEASED

2019 ◽  
Vol 26 (1) ◽  
Author(s):  
Muhammad Surya Negara ◽  
Soetojo Soetojo ◽  
Doddy M Soebadi
Keyword(s):  
Cross Sections ◽  
Sertoli Cells ◽  
Leydig Cells ◽  
Vas Deferens ◽  
Seminiferous Tubules ◽  
Control Group ◽  
White Rats ◽  
Wistar Strain ◽  
Significant Difference ◽  
Release Group

Objective: To determine the effect of Erythropoietin (EPO) on the number of spermatogonia, Sertoli cells, and Leydig cells in white rats wistar strain testis after the release of ligation vas deferens. Material & Methods: Twenty-four Wistar strain rats were grouped into 4 groups. The control group only performed an orchiectomy for testicular examination, ligation group vas deferens only, group performed release ligation of vas deferens, and group performed release ligation of vas deferens and given EPO injection with dose of 1000 iu/kg BW intraperitoneally for 1 week (3x/week). Observation of spermatogonium, Sertoli cells and Leydig cells by counting the amount on the 5 cross sections of the seminiferous tubules using a 400x light magnification microscope with Haematoxylin Eosin staining. Results: Ligation of vas deferens can significantly decreased the number of spermatogonia and Sertoli cells (p<0.05). In Leydig cells there was no significant difference in numbers after ligation of vas deferens (p>0.05). Release of vas deferens ligation turned out to be no significant amount difference in spermatogonia, Sertoli cells, and Leydig cells with ligation of vas deferens group. Similarly, the treatment of ligation vas deferens release and an EPO injection for 1 week was also no significant difference in number compared to the ligation release group of vas deferens. Conclusion: The number of Sertoli cells, Leydig cells, and spermatogonia in the ligation release group of vas deferens and given EPO for 1 week had the same number with the ligation release group vas deferens.

scholarly journals The insulin sensitiser metformin regulates chicken Sertoli and germ cell populations

Reproduction ◽  
2016 ◽  
Vol 151 (5) ◽  
pp. 527-538 ◽  
Author(s):  
M Faure ◽  
E Guibert ◽  
S Alves ◽  
B Pain ◽  
C Ramé ◽  
...  
Keyword(s):  
Germ Cells ◽  
Sertoli Cells ◽  
Energy Content ◽  
Morphological Changes ◽  
Seminiferous Tubules ◽  
Reduce Food Intake ◽  
Testicular Weight

Abstract Metformin, an insulin sensitiser from the biguanide family of molecules, is used for the treatment of insulin resistance in type 2 diabetes individuals. It increases peripheral glucose uptake and may reduce food intake. Based on the tight link between metabolism and fertility, we investigated the role of metformin on testicular function using in vitro culture of Sertoli cells and seminiferous tubules, complemented by in vivo data obtained following metformin administration to prepubertal chickens. In vitro, metformin treatment reduced Sertoli cell proliferation without inducing apoptosis and morphological changes. The metabolism of Sertoli cells was affected because lactate secretion by Sertoli cells increased approximately twofold and intracellular free ATP was negatively impacted. Two important pathways regulating proliferation and metabolism in Sertoli cells were assayed. Metformin exposure was not associated with an increased phosphorylation of AKT or ERK. There was a 90% reduction in the proportion of proliferating germ cells after a 96-h exposure of seminiferous tubule cultures to metformin. In vivo, 6-week-old chickens treated with metformin for 3 weeks exhibited reduced testicular weight and a 50% decrease in testosterone levels. The expression of a marker of undifferentiated germ cells was unchanged in contrast to the decrease in expression of ‘protamine’, a marker of differentiated germ cells. In conclusion, these results suggest that metformin affects the testicular energy content and the proliferative ability of Sertoli and germ cells. Reproduction (2016) 151 527–538

Taro flour (Colocasia esculenta) increases testosterone levels and gametogenic epithelium of Wistar rats

2018 ◽  
Vol 9 (4) ◽  
pp. 373-376 ◽  
Author(s):  
G. G. Ribeiro ◽  
L. R. Pessôa ◽  
M. D. C. de Abreu ◽  
L. B. N. S. Corrêa ◽  
A. D’Avila Pereira ◽  
...  
Keyword(s):  
Body Length ◽  
Sertoli Cells ◽  
Control Diet ◽  
Caloric Intake ◽  
Male Rats ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Testosterone Levels ◽  
Taro Flour ◽  
Testicular Weight

AbstractThis study evaluated the effects of diet containing taro flour on hormone levels and the seminiferous tubules morphology of rats. After weaning, the male rats were divided into two groups (n=12 each): control group (CG) treated with control diet and taro group (TG), fed with 25% taro flour for 90 days. Food, caloric intake, mass and body length were evaluated at experiment end. Testis followed the standard histological processing. Immunostaining was performed using an anti-vimentin antibody to identify Sertoli cells. In histomorphometry, total diameter, total area, epithelial height, luminal height and luminal area were analyzed. The testosterone levels were performed using the radioimmunoassay method. Group TG presented (P<0.05): increase in mass, body length, testicular weight, histomorphometric parameters and hormonal levels. Food intake, calorie and Sertoli cells not presented statistical differences. The taro promoted increase in the testicles parameters and hormones.

Testicular Degeneration and Necrosis Induced by Dietary Cobalt

1985 ◽  
Vol 22 (6) ◽  
pp. 610-616 ◽  
Author(s):  
D. E. Corrier ◽  
H. H. Mollenhauer ◽  
D. E. Clark ◽  
M. F. Hare ◽  
M. H. Elissalde
Keyword(s):  
Sertoli Cells ◽  
Leydig Cells ◽  
Giant Cells ◽  
Seminal Vesicles ◽  
Germinal Epithelium ◽  
Seminiferous Tubules ◽  
Multinucleated Giant Cells ◽  
Necrotic Debris ◽  
Testicular Degeneration

Dietary cobalt (265 ppm Co) induced polycythemia and consistent degenerative and necrotic lesions in the seminiferous tubules of rats. Cyanosis and engorgement of testicular vasculature on day 35 and thereafter was followed on day 70 by degenerative and necrotic changes in the germinal epithelium and Sertoli cells. Spermatogonia, primary spermatocytes and round spermatids were markedly affected, while elongated spermatids, spermatozoa, and Sertoli cells were more resistant. Damaged tubules, often present side by side with normal tubules, contained multinucleated giant cells composed of degenerated and necrotic spermatocytes and/or spermatids, sloughed germinal and Sertoli cells, and calcified necrotic debris. Necrotic tubules were frequently collapsed and devoid of epithelium except for occasional spermatogonia and surviving Sertoli cells. Lesions were not observed in the Leydig cells, cauda epididymis or seminal vesicles.

FSH and testosterone, alone or in combination, initiate testicular growth and increase the number of spermatogonia and Sertoli cells in a juvenile non-human primate (Macaca mulatta)

1993 ◽  
Vol 136 (2) ◽  
pp. 235-NP ◽  
Author(s):  
M. Arslan ◽  
G. F. Weinbauer ◽  
S. Schlatt ◽  
M. Shahab ◽  
E. Nieschlag
Keyword(s):  
Stem Cells ◽  
Macaca Mulatta ◽  
Sertoli Cells ◽  
Statistical Significance ◽  
Combined Treatment ◽  
Morphological Differentiation ◽  
Secretory Activity ◽  
Seminiferous Tubules ◽  
Testicular Growth ◽  
Testicular Weight

ABSTRACT The present study was designed to investigate the relative contributions of FSH and testosterone in the initiation of testicular growth and function in primates. Four groups (n = 4/group) of juvenile rhesus monkeys (Macaca mulatta), 12–18 months old, were treated with vehicle, a highly purified human FSH preparation (hFSH; Fertinorm, 3 IU/kg per day), testosterone (testosterone enanthate, 125 mg/week) or FSH plus testosterone, for a period of 12 weeks. Compared with vehicle treatment, the administration of hormones significantly (P <0·05) increased testicular weight and volume, and the diameter of seminiferous tubules. The number of Sertoli cells per tubule cross-section also increased significantly (P <0·05). Numbers of Ad (dark) spermatogonia (reserve stem cells) were not significantly influenced by any treatment. In contrast, the numbers of Ap (pale) spermatogonia (renewing stem cells) were significantly (P <0·05) stimulated with hFSH and testosterone alone. Following the combined treatment, numbers of Ap spermatogonia were also higher compared with control but this effect did not attain statistical significance. In half of the animals in both testosterone-treated groups, a few prophase I spermatocytes were present. Inhibin concentrations reached adult levels in hFSH-treated groups but remained unaffected by testosterone. Conversely, testosterone failed to influence inhibin levels and, unlike hFSH, increased testicular androgen concentration and epididymal weights. Our observations suggest that hFSH and testosterone alone are capable of initiating testicular growth and gametogenesis in an immature primate. Both hormones probably act via activation of the proliferation of Ap spermatogonia, which are considered to be renewing stem cells within the testis. This study also suggests that androgens might be involved in the morphological differentiation of the immature primate Sertoli cell, whereas the secretory activity of the seminiferous tubule, in terms of peripheral inhibin levels, might be under the influence of FSH. Journal of Endocrinology (1993) 136, 235–243

Studies on the structure and function of the mammalian testis IV. Steroid metabolism in vitro by isolated interstitium and seminiferous tubules of rat testis after heat sterilization

1974 ◽  
Vol 186 (1082) ◽  
pp. 37-51 ◽  
Keyword(s):  
Sertoli Cells ◽  
Biological Significance ◽  
Structure And Function ◽  
Seminiferous Tubules ◽  
Enhanced Production ◽  
Heat Treated ◽  
Significant Difference ◽  
Accessory Sex Organs ◽  
And Function

A study has been carried out on the metabolism of [7α- 3 H] pregnenolone and [4- 14 C] progesterone by the interstitium and seminiferous tubules isolated from the testes of normal rats and those in which the germ cells were destroyed by exposing the scrotum to a temperature of 43°C for 30 min. No difference was found between the ability of the interstitium of the experimentally treated rats to metabolize the radioactive substrates as compared with that of normal animals. Similarly, no change was found in various androgen dependent features (mass of accessory sex organs and fructose levels of the coagulating glands) in the experimentally treated rats as compared with the controls. In the seminiferous tubules of the heat-treated animals the metabolism of progesterone in vitro was significantly increased as compared with that found in the tubules of normal rats in vitro due mainly to a much greater production of 20α-hydroxypregn-4-en-3-one. There was no significant difference in the relative proportions of 17α-hydroxyprogesterone, androstenedione and testosterone obtained from the incubations of heat-treated tubules as compared with the normal (control) tissue. It is concluded that within the seminiferous tubules, the Sertoli cells are the principal site of the enzymes responsible for the metabolism of pregnenolone and progesterone in vitro to androgens and to 20α-hydroxypregn-4-en-3-one. The possible biological significance of the enhanced production of 20α-hydroxypregn-4-en-3-one is discussed.

scholarly journals PATH-19. MOLECULAR, HISTOLOGIC AND CLINICAL CHARACTERISTICS OF OLIGODENDROGLIOMAS: A MULTI-INSTITUTIONAL RETROSPECTIVE STUDY

2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii168-ii168
Author(s):  
Antonio Dono ◽  
Kristin Alfaro-Munoz ◽  
Yuanqing Yan ◽  
Carlos Lopez-Garcia ◽  
Zaid Soomro ◽  
...  
Keyword(s):  
Health Science ◽  
Cancer Center ◽  
Subtotal Resection ◽  
Adjuvant Radiation ◽  
Science Center ◽  
Who Grade ◽  
Pik3ca Mutations ◽  
Increased Risk ◽  
Significant Difference ◽  
Grade 3

Abstract In the 2016 WHO classification of CNS tumors, oligodendrogliomas are molecularly defined by IDH1 or IDH2 mutations and 1p/19q co-deletion. Some reports suggest that PI3K pathway alterations may confer increased risk of progression and poor prognosis in oligodendroglioma. However, factors that influence prognosis in molecularly defined oligodendroglioma (mOGD) have not been thoroughly studied. Also, the benefits of adjuvant radiation and temozolomide in mOGDs remain to be determined. 107 mOGDs diagnosed between 2008-2018 at the University of Texas Health Science Center at Houston (n= 39) and MD Anderson Cancer Center (n= 68) were included. A retrospective review of the demographic, clinical, histologic, molecular, and outcomes were performed. Median age at diagnosis was 37 years and 61 (57%) patients were male. There were 64 (60%) WHO Grade 2 and 43 (40%) WHO Grade 3 tumors. Ninety-five (88.8%) tumors were IDH1-mutant and 12 (11.2%) were IDH2-mutant. Eighty-two (77%) patients were stratified as high-risk: older than 40-years and/or subtotal resection (RTOG 9802). Gross-total resection was achieved in 47 (45%) patients. Treatment strategies included observation (n= 15), temozolomide (n= 11), radiation (n= 13), radiation with temozolomide (n= 62) and other (n= 6). Our results show a benefit of temozolomide vs. observation in progression-free survival (PFS). However, no benefit in PFS or overall survival (OS) was observed when comparing radiation vs. radiation with temozolomide. PIK3CA mutations were detected in 15 (14%) cases, and patients with PIK3CA-mutant mOGDs showed worse OS (10.7-years vs 15.1-years, p= 0.009). Patients with WHO Grade 3 tumors had shorter PFS but no significant difference in OS was observed compared to grade 2. Our findings suggest that mOGDs harboring PIK3CA mutations have worse OS. Except for an advantage in PFS in temozolomide treated patients, adjuvant treatment with radiation or the combination of both, showed no significant advantage in terms of OS.

scholarly journals Slowly resorbable biosynthetic mesh: 2-year results in VHWG grade 3 hernia repair

Hernia ◽  
2021 ◽  
Author(s):  
M. M. J. Van Rooijen ◽  
T. Tollens ◽  
L. N. Jørgensen ◽  
T. S. de Vries Reilingh ◽  
G. Piessen ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Hernia Repair ◽  
Hernia Recurrence ◽  
Recurrence Rates ◽  
Elective Repair ◽  
Significant Difference ◽  
Grade 3

Abstract Introduction Information on the long-term performance of biosynthetic meshes is scarce. This study analyses the performance of biosynthetic mesh (Phasix™) over 24 months. Methods A prospective, international European multi-center trial is described. Adult patients with a Ventral Hernia Working Group (VHWG) grade 3 incisional hernia larger than 10 cm2, scheduled for elective repair, were included. Biosynthetic mesh was placed in sublay position. Short-term outcomes included 3-month surgical site occurrences (SSO), and long-term outcomes comprised hernia recurrence, reoperation, and quality of life assessments until 24 months. Results Eighty-four patients were treated with biosynthetic mesh. Twenty-two patients (26.2%) developed 34 SSOs, of which 32 occurred within 3 months (primary endpoint). Eight patients (11.0%) developed a hernia recurrence. In 13 patients (15.5%), 14 reoperations took place, of which 6 were performed for hernia recurrence (42.9%), 3 for mesh infection (21.4%), and in 7 of which the mesh was explanted (50%). Compared to baseline, quality of life outcomes showed no significant difference after 24 months. Despite theoretical resorption, 10.7% of patients reported presence of mesh sensation in daily life 24 months after surgery. Conclusion After 2 years of follow-up, hernia repair with biosynthetic mesh shows manageable SSO rates and favorable recurrence rates in VHWG grade 3 patients. No statistically significant improvement in quality of life or reduction of pain was observed. Few patients report lasting presence of mesh sensation. Results of biosynthetic mesh after longer periods of follow-up on recurrences and remodeling will provide further valuable information to make clear recommendations. Trial registration Registered on clinicaltrials.gov (NCT02720042), March 25, 2016.

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