Effect of Bap on the Expression of Cx43 in Leydig Cells

2014 ◽  
Vol 675-677 ◽  
pp. 167-170
Author(s):  
Huan Li ◽  
Yi Zhang ◽  
Shu Guang Jin
Keyword(s):  
Surface Water ◽  
Culture System ◽  
Leydig Cells ◽  
Reproductive Function ◽  
Control Group ◽  
Response Relationship ◽  
Dose Response Relationship ◽  
Adult Rat ◽  
Male Reproductive Function ◽  
Polycyclic Aromatic

Polycyclic aromatic hydrocarbon (PAHs), espically benzopyrene (BaP),are the most popular pollutants in surface water,and the adverse effects on male reproductive function have aroused more and more attention. The objective of this study is to confirm BaP regulates testosterone (T) in adult rat Leydig cells and then deserve the effect of BaP on Cx43 between Leydig cells, in order to explore whether the influence of Bap on Leydig cells is via its effect on Cx43. Established the primary culture system Leydig cell, Primary cultured Leydig cells were incubated in the different concentrations (1;10;50ug/ml) of BaP, and DMSO control group. After culturing 24h, the expression of Cx43 on cell membrane were investigated with immunofluorescence and the total Cx43 were evaluated by Western blotting.. The results indicate: comparing with the control group, the expression of Cx43 are suppressed by Bap in a dose-response relationship.

Analysis of Testicular Toxicity of Solanine in Mice

2011 ◽  
Vol 282-283 ◽  
pp. 195-200
Author(s):  
Yu Bin Ji ◽  
Jing Chao Sun ◽  
Lang Lang
Keyword(s):  
Sertoli Cells ◽  
Leydig Cells ◽  
Pathological Change ◽  
Reproductive Toxicity ◽  
Reproductive Function ◽  
Control Group ◽  
Testicular Toxicity ◽  
Male Reproductive Function ◽  
Testicular Weight ◽  
Test Concentration

Solanine is one of chemicalcomponents in the tuber and the sprout of the potato which is toxic to human. Some studies on the toxicity of solanine on humans and animals have been reported, little is known about the mechanism of its testicular toxicity. In present study, the toxicity of solanine on male reproductive function was investigated in adult male Kunming mice. Compared with the control group, there was an obvious pathological change in testis, and the expression levels of 3β-HSD and vimentin decreased when the test concentration of solanine was at 21 mg/kg/day. Meanwhile, there was a significant dose- and duration-dependent reduction in the testicular weight and organ coefficient. However, no changes have been detected about the level of testosterone and there was a dramatic increase in the expression of LH in Leydig cells. Results of this study suggested that solanine leaded to male reproductive toxicity influencing the functions of Sertoli cells and Leydig cells.

scholarly journals The effects of gold nanoparticles on Leydig cells and male reproductive function in mice

2020 ◽  
Author(s):  
Ying Liu ◽  
Xiaojie Li ◽  
Shuwen Xiao ◽  
Xinyi Liu ◽  
Xuanming Chen ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Leydig Cells ◽  
Reproductive Function ◽  
Great Promise ◽  
Plasma Testosterone ◽  
Control Group ◽  
Dependent Manner ◽  
Epididymal Sperm ◽  
Testosterone Production ◽  
Male Reproductive Function

Abstract Background: Gold nanoparticles (AuNPs) have shown great promise in various biomedical applications, but their effects on male reproductive function remain to be ascertained. The aim of this study was to investigate the uptake, cytotoxicity and testosterone production inhibition of AuNPs in mouse Leydig cells, as well as their accumulation in the testes of male mice and their effects on male reproductive function.Results: AuNPs (5 nm) were able to be internalized into the endosomes/lysosomes of TM3 Leydig cells, induce the formation of autophagosomes, increase the production of reactive oxygen species (ROS), and arrest the cell cycle in S phase, resulting in concentration-dependent cytotoxicity and DNA damage. Interestingly, AuNPs significantly reduced testosterone production in TM3 cells by inhibiting the expression of 17α-hydroxylase, an important enzyme in androgen synthesis. After repeated intravenous injection, AuNPs gradually accumulated and retained in the testes of male BALB/c mice in a dose-dependent manner. One week after withdrawal, the level of plasma testosterone in the 0.5 mg/kg AuNPs group was significantly reduced compared to that in the PBS control group, accompanied by the decreased expression of 17α-hydroxylase in the testes. In addition, AuNPs treatment significantly increased the rate of epididymal sperm malformation, but without affecting fertility.Conclusion: Our results suggest that AuNPs can accumulate in the testes and reduce testosterone production in Leydig cells by down-regulating the expression of 17α-hydroxylase, thus affecting the quality of epididymal sperm.

The Prevalence of Bacteriospermia in Infertile Men and Association with Semen Quality in Southwestern Iran

2020 ◽  
Vol 20 (2) ◽  
pp. 198-202 ◽  
Author(s):  
Mohammad Motamedifar ◽  
Yalda Malekzadegan ◽  
Parisa Namdari ◽  
Behzad Dehghani ◽  
Bahia Namavar Jahromi ◽  
...  
Keyword(s):  
Semen Quality ◽  
Sperm Quality ◽  
Reproductive Function ◽  
World Health ◽  
Public Health Issue ◽  
Control Group ◽  
Microbiological Analysis ◽  
Male Reproductive Function ◽  
Infertile Men ◽  
Southwestern Iran

Introduction: Infertility considered as a social and public health issue and estimated that most of these infertile couples are residents of developing countries. Infectious diseases including the history of Sexually Transmitted Infections (STIs) may impact on male reproductive function. Therefore, the present study aimed to investigate the prevalence of bacterial contaminants of semen and probable association with sperm quality of infertile men in Iranian population. Methods: The study population consisted of 200 infertile men and 150 fertile men attending an infertility Center in southwestern Iran during the study period in 2015. The assessment of sperm parameters was according to the World Health Organization (WHO) guidelines. The presumptive pathogens were identified using standard microbiology tests and confirmed by specific PCR primers. Results: The prevalence of bacteriospermia in the semen of the infertile group was significantly higher than that in the fertile group (48% vs. 26.7%, P <0.001). The microbiological analysis of samples showed that the most abundant species of bacteria in semen of infertile men were Chlamydia trachomatis (12.5%) followed by Neisseria gonorrhoeae (11%). On the other hand, in the control group, Lactobacillus spp. (17.3%) was the most isolated pathogen. Results showed that the presence of N. gonorrhoeae, C. trachomatis, Mycoplasma genitalium, Haemophilus, and Klebsiella was significantly associated with sperm abnormality. Conclusion: Based on our findings, it seems that bacteriospermia is associated with alterations in the properties of semen which may lead to a decrease in the fertilization potential of sperm. Therefore, immediate and appropriate treatment is necessary before investigating every other possible cause of infertility.

Inhibitory Effects of Indomethacin on Implantation and its Related Phenomena

1996 ◽  
Vol 24 (4) ◽  
pp. 358-362 ◽  
Author(s):  
K Kanayama ◽  
H Osada ◽  
K Nariai ◽  
T Endo
Keyword(s):  
Birth Rate ◽  
Inhibitory Effect ◽  
High Rate ◽  
Control Group ◽  
Corpora Lutea ◽  
Response Relationship ◽  
Inhibitory Effects ◽  
Dose Response Relationship ◽  
Dose Dependent ◽  
Implantation Period

The dose-response relationship for the inhibitory effect of indomethacin on implantation and continuance of pregnancy was examined in four groups of rabbits administered with indomethacin (2.5, 5.0, 7.5 and 10.0 mg/kg) during the implantation period and compared with a control group. Implanted fetuses and corpora lutea were counted by laparotomy, and the number of offspring born was noted. The inhibitory effect of indomethacin on implantation was found to be dose–dependent, and the birth rate decreased in the indomethacin groups compared with the control group. As a result, even where implantation had been achieved, death of the implanted fetuses occurred at a high rate in rabbits administered with indomethacin during the implantation period.

scholarly journals Antihypercholesterolemic and Antioxidant Effects of Blumea balsamifera L. Leaf Extracts to Maintain Luteinizing Hormone Secretion in Rats Induced by High-Cholesterol Diets

2021 ◽  
Vol 13 (4) ◽  
pp. 396-402
Author(s):  
I Gede Widhiantara ◽  
Anak Agung Ayu Putri Permatasari ◽  
I Wayan Rosiana ◽  
Putu Angga Wiradana ◽  
Luh Putu Widiastini ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Luteinizing Hormone ◽  
Total Cholesterol ◽  
Reproductive Function ◽  
Control Group ◽  
High Cholesterol Diet ◽  
Cholesterol Diet ◽  
High Cholesterol ◽  
Male Reproductive Function ◽  
Antioxidant Effects

BACKGROUND: The discovery of herbal ingredients for antihypercholesterolemic and to improve male reproductive function is very necessary due to high-cholesterol diet factors. Blumea balsamifera leaf extract (BBLE) is known to be able to increase the number and diameter of Leydig cells in rats given high-fat feed. This study was to conducted to determine the levels of total cholesterol, body weight, plasma malondialdehyde (MDA), Superoxide Dismutase (SOD), Luteinizing Hormone (LH) in high-cholesterol-fed male rats provided with BBLE.METHODS: This research utilized a randomized post-test only control group. Ethanol was used to extract the BBLE, which was then evaporated. For 21 days, 16 Wistar rats were given a high-cholesterol diet. To determine the effect of BBLE on the high-cholesterol diet, the samples were divided into two groups (control and BBLE group) on day 22. The treatments lasted 30 days. SOD, plasma MDA, LH, and total cholesterol were measured.RESULTS: The results showed that the SOD and LH parameters were significantly higher in the treatment of BBLE compared to the control group (p<0.05). The parameters of total cholesterol levels, bodyweight, and MDA of rats given BBLE were significantly lower than those of the control group (p<0.05).CONCLUSION: Our findings highlight that BBLE has antihypercholesterolemic and antioxidant effects. The BBLE also has potential to be used as a therapy to maintain male reproductive function because it has a positive effect on the hypothalamic-pituitary axis through increasing LH secretion.KEYWORDS: Malondialdehyde, Superoxide dismutase, Luteinizing hormone, Blumea balsamifera extract, High-cholesterol diet

The Comparation of Intraperitoneal Injection and Nasal-only Delivery Allergic Rhinitis Model Challenged With Different Allergen Concentration

2019 ◽  
Vol 33 (2) ◽  
pp. 145-152 ◽  
Author(s):  
Ying Wang ◽  
Yue Zhou ◽  
Yun Zhu ◽  
Wenting Yu ◽  
Jinghui Wang ◽  
...  
Keyword(s):  
Allergic Rhinitis ◽  
Dose Response ◽  
Lavage Fluid ◽  
Ar Model ◽  
Control Group ◽  
Response Relationship ◽  
Serum Antibodies ◽  
Dose Response Relationship ◽  
Delivery Model ◽  
Allergic Symptoms

Background Predominantly, 2 animal models are used for allergic rhinitis (AR), which are established by intraperitoneal (IP) injection plus local challenge and nasal-only delivery. The differences between these 2 models are not fully understood. Moreover, dose–response relationship to allergens remains unclear. Methods In this study, mice were sensitized by nasal drops (without adjuvant, once daily for 9 weeks) to set up a nasal-only delivery AR model. Five different doses of ovalbumin (OVA) nasal drops were served to explore the dose–response to allergens. Allergic symptoms, serum antibodies (IgE, IgG2a, and IgG1), spleen supernatant and nasal lavage fluid (NALF) cytokines (IL-4, IL-5, and IFN-r), and infiltrated eosinophils of the nasal mucosa were observed. Results The allergic symptoms, serum antibodies, cytokines, and infiltrated eosinophils were significantly higher in the high OVA concentration compared with those of the control group. Different OVA concentrations associated with the severity of allergy. Within a certain concentration range, OVA concentration positively related to the severity of symptoms, IgE antibody level, and Th2 bias. Meanwhile, serum antibodies (IgE and IgG1) and cytokines (IL-4, IL-5 in spleen and IL-4 in NALF) were significantly higher in the classical IP injection group than in the nasal drip groups. Conclusion The IP injection model and the nasal-only delivery model are 2 typical models for AR that causes a different immune response. A positive dose–response relationship in the nasal-only delivery model is observed from 25 mg/mL to 0.025 mg/mL.

scholarly journals The influence of BESTFertil towards male reproductive function in idiopathic fertility

2018 ◽  
Vol 19 (4) ◽  
pp. 54-59 ◽  
Author(s):  
D. G. Korenkov ◽  
A. L. Pavlov ◽  
E. D. Kazimzade
Keyword(s):  
Treatment Plan ◽  
Sperm Concentration ◽  
Reproductive Function ◽  
Married Couples ◽  
Controlled Study ◽  
Control Group ◽  
Motile Sperm ◽  
Study Objective ◽  
Male Reproductive Function ◽  
Prospective Controlled Study

The study objectiveis to evaluate the influence of complex BESTFertil on the fertility in men with idiopathic pathospermia.Materials and methods. Ninety males (from 25 to 45years old) took part in the open prospective controlled study: 60 males with idiopathic fertility were given BESTFertil (2 caps “Morning” and 2 caps “Evening” per day for the period of 3 month). Other 30 males belong to controls. The efficacy of therapeutics was evaluated according to spermatogram analysis (volume of ejaculate, sperm concentration, percentage of progressive-motile sperm (grade A + B), and percentage of degenerated forms).Results.After 3 month of treatment the ejaculate volume increased to 1,7 time, and exceeded controls up. The sperm concentration increased to 33 % (before treatment) and exceeded controls to 39 %. The percentage of progressive-motile sperm (grade A + B) was 6 times more as it was before treatment, and 89,8 % as compare to the controls. The percentage of degenerated forms of spermatozoids decreased to 32,3 % (before treatment) and was 2,9 % less then in the control group.Conclusions. Administration of BESTFertil in treatment plan of male idiopathic fertility may consider to be a promising type of therapy, which increased the records of spermatogram and promotes conception among the married couples.

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