Showing 9 results for Antioxidants
Mohammad Nouri, Aliyeh Ghasemzadeh, Laya Farzadi, Vahideh Shahnazi, Marefat Ghaffari Novin,
Volume 6, Issue 2 (7-2008)
Abstract
Background: It has been shown that reactive oxygen species (ROS) can lead to deleterious effects on a range of sperm parameters. Vitamins E and C are capable of reducing ROS levels and lipid peroxidation. Objective: The aim of study was to determine the level of lipid peroxidation as indicated by Malondialdehyde (MDA) and vitamins E and C in sperm and seminal plasma of asthenoteratozoospermic and normozoospermic men and their relationships with semen parameters. Materials and Methods: Forty men with normozoospermic and 60 infertile men with asthenoteratozoospermic semen profiles were randomly selected. Semen analysis was done according to the WHO standard. Sex hormonal profiles were measured by ELISA methods. The level of vitamins (C and E) and MDA were measured by HPLC and tiobarbiotic acid, respectively. Results: MDA concentration in the spermatozoa (0.10.06 nmol/ml) and seminal plasma (1.90.35 nmol/ml) of asthenoteratozoospermic were significantly higher than in normozoospermic males (p<0.001).The level of vitamins E and C in seminal plasma of normozoospermic were significantly higher than in asthenoteratozoospermic males (p<0.01). However, the amount of vitamin C in the spermatozoa of normozoospermic was significantly less than in asthenoteratozoospermic males (p<0.01). Sensitivity, specificity, positive and negative prognostic value of MDA of seminal plasma and spermatozoa were more than vitamins C and E. The level of vitamin C of spermatozoa had more diagnostic value when compare to vitamins C and E in seminal plasma. Conclusion: The level of MDA in seminal plasma and spermatozoa and vitamin C in spermatozoa may be a diagnostic tool for etiology of infertility in the asthenoteratozoospermic patients.
Shahla Sohrabipour, Adele Jafari, Mohamad Kamalinejad, Abdolfatah Sarrafnejd, Taherah Shahrestany, Hamid-Reza Sadeghipour,
Volume 11, Issue 6 (9-2013)
Abstract
Background: Prepubertal varicocele has the most devastating effects on the testes. Oxidative stress is the major cause leading to infertility in varicocele. The antioxidant properties of Flaxseed (FS) treatment in some oxidative diseases have been reported.
Objective: This study aimed to evaluate the antioxidant effect of FS in prepubertal rats with experimental varicocele.
Materials and Methods: Forty two male prepubertal rats were divided into 6 groups: the varicocele group were either fed with 10% FS, or with regular diet, or with Vit E, the group with sham operation fed with 10% FS, or had regular diet, and control rats who had not been operated but received regular diet. Varicocele was created by Koksal method. After 6 weeks sperm superoxide anion and H2O2 were evaluated by flowcytometery. Semen total antioxidant capacity (TAC) by Koracevic method and testes malondialdehyde (MDA) by thiobarbituric acid with spectrophotometry was measured.
Results: While superoxide anion and H2O2 were significantly higher in varicocele grop with regular diet (p=0.0001), FS significantly decreased the previously-mentioned parameters (p=0.0001). There were no significant differences for seminal TAC between 6 groups (p=0.07). Left testicular MDA concentration were lower in varicocele or group that were fed with 10% FS compared with other groups (p=0.001).
Conclusion: Reactive oxygen species (ROS) may cause sperm oxidative damage. FS as a fat soluble antioxidant can scavenge intracellular ROS production in varicocele.
Mohammad Mardani, Ahmad Vaez, Shahnaz Razavi,
Volume 12, Issue 5 (6-2014)
Abstract
Background: Currently, relation between reactive oxygen species (ROS) ROS concentration and semen quality was indicated. Saffron has traditionally been not only considered as a food additive but also as a medicinal herb, which has a good antioxidant properties.
Objective: The aim of this study was to evaluate the protection potency of saffron and vitamin E on sperm chromatin integrity.
Materials and Methods: Thirty adult male Wistar rats divided equally into saffron (100 mg/kg), vitamin E (100 mg/kg) and control (0.5cc distilled water /day) groups. After 60 days, cauda epididymis dissected and sperm cells were used for analysis of sperm chromatin packaging by chromomycin A3 (CMA3) staining, and sperm chromatin susceptibility to acid denaturation by acridine orange (AO) staining.
Results: The mean percentage of CMA3 positive sperm was significantly decreased in saffron and vitamin E groups relative to control group (p<0.001). Moreover, the AO staining results showed that the mean percentage of sperm with DNA damage was significantly decreased in saffron and vitamin E groups as compared with control group (p<0.001).
Conclusion: Our results purposed that saffron can protect sperm against DNA damage and chromatin anomalies.
Mahsa Askari Jahromi, Mansoureh Movahedin, Zohreh Mazaheri, Masoud Amanlu, Seyed Javad Mowla, Hosein Batooli,
Volume 12, Issue 7 (8-2014)
Abstract
Background: Catsper proteins are responsible for entering Ca2+ to the cell and play an important role in sperm motility and male fertility. Antioxidants are vital for sperm motility too. Escanbil (Calligonum) extract possess some of the important antioxidant like Catechin and Quercetin.
Objective: Here we investigated the effects of Escanbil (Calligonum) extract on the sperm parameters and the expressing of Catsper gene in aging male mice.
Materials and Methods: In this animal study, firstly, dose response was performed by using these three doses of Escanbil (Calligonum) (10, 30 and 50 mg/kg). 5 mice in each group were considered and Intra Peritoneal injection was done for 5 weeks. the sperm parameters analyzed and Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL )staining was done. 30 mg/kg dose was considered as optimum dose. Secondly: fifteen aging male mice (11-13 months) were divided into three groups: control, sham and experiment. The experiments were injected Intra peritonealy with Escanbil (Calligonum) extract (30mg/kg) weekly for up to 5 weeks. The sham group was injected Intra Peritoneal (DMSO). Sperm parameters were analyzed. Expression of Catsper genes was analyzed by Real time PCR.
Results: Our results showed that after Escanbil (Calligonum) treatment (30 mg/kg), the sperm parameters were improved in experimental group (p<0.05). Our data showed that there was a statistical significance difference between the expressions of Catsper 2, 4 in aging experiment group comparison with aging control group (p<0.05).
Conclusion: We investigated that the Escanbil (Calligonum) extract (30 mg/kg) can improve sperm parameters and change the expression of Catsper genes in aging male mice. This herbal extract can be used as an antioxidant component for clinical usages.
Cyrus Jalili, Sharareh Ahmadi, Shiva Roshankhah, Mohammadreza Salahshoor,
Volume 14, Issue 2 (2-2016)
Abstract
Background: The predominant phytoestrogen in soy and derived products is the isoflavone Genistein. Genistein has antioxidant properties. Morphine is a main psychoactive chemical in opium that can increase the generation of free radicals and therefore it could adversely affects the spermatogenesis.
Objective: The main goal was to investigate whether the Genistein could protect morphine adverse effects on sperm cells viability, count, motility, and testis histology and testosterone hormone and nitric oxide in blood serum.
Materials and Methods: In this study, various doses of Genistein (0, 1, 2, and 3 mg/kg) and Genistein plus morphine (0, 1, 2, and 3 mg/kg) were administered interaperitoneally to 48 male mice for 30 consequent days. These mice were randomly assigned to 8 groups (n=6) and sperm parameters (sperm cells viability, count, motility and morphology), testis weight and histology, testosterone hormone (ELISA method), FSH and LH hormones (immunoradiometry) and serum nitric oxide (griess assay) were analyzed and compared.
Results: The results indicated that morphine administration significantly decreased testosterone (0.03 ng/mg) LH and FSH level, histological parameters, count, viability (55.3%), morphology and motility of sperm cells (1%), testis weight (0.08 gr) and increase nitric oxide compared to saline group (p=0.00). However, administration of Genistein and Genistein plus morphine significantly boosted motility, morphology, count, viability of sperm cells, seminiferous tubules diameter, germinal thickness, testosterone, LH and FSH while decrease nitric oxide level in all groups compared to morphine group (p<0.025).
Conclusion: It seems that Genistein administration could increase the quality of spermatozoa and prevent morphine- induced adverse effects on sperm parameters
Sedigheh Ahmadi, Reihane Bashiri, Akram Ghadiri-Anari, Azadeh Nadjarzadeh,
Volume 14, Issue 12 (12-2016)
Abstract
Many studies have focused on male infertility. There is limited evidence about the influence of nutrition on quality of semen. Approximately, 30-80% of infertility cases are caused by oxidative stress and decreased level of seminal total antioxidant capacity. This study was aimed to review the effects of oral antioxidant supplements on improving major semen parameters such as sperm concentration, motility, morphology, DNA damage, and fertility rate. Data were extracted from PubMed and Google scholar database by using the terms “antioxidant”, “multivitamin”, “carnitine”, “CoQ10”, “vitamin C”, “vitamin E”, “zinc”, “folic acid”, “N-acetyl cysteine” and “selenium” combined with “male infertility”, “semen”, and “sperm” to generate a set of relevant citations. Supplements such as CoQ10 and alpha-tocopherol significantly improve sperm count. Also, carnitine has positive effects on sperm motility and morphology. Simultaneous administration of vitamin E and vitamin C reduces the sperm DNA damage. However, in some studies, one or more factors have not changed substantially. In most of the studies, antioxidant supplementation improved the number, motility, morphology and sometimes DNA integrity of sperm. The present study showed that antioxidant supplements, especially a combination of antioxidants such as vitamin C, vitamin E, and CoQ10 intake can effectively improve semen parameters in infertile men
Augusta Chinyere Nsonwu-Anyanwu, Eworo Raymond Ekong, Sunday Jeremiah Offor, Ogar Francis Awusha, Orji Oliver Chukwuma , Ediang Idiongo Umoh, Owhorji Jennifer Aleruchim, Emetonjor Faith Rowland, Usoro Chinyere Adanna Opara,
Volume 17, Issue 3 (5-2019)
Abstract
Background: Heavy metal-induced oxidative stress has been implicated in abnormal sperm functions and male infertility.
Objectives: Serum and seminal levels of heavy metals and biomarkers of oxidative stress were compared in fertile and infertile men.
Materials and Methods: A total of 130 men aged 20–60 yr comprising 30 azoospermic, 50 oligozoospermic, and 50 normozoospermic men were studied. Semen analysis was done by world health organization guidelines, biomarkers of oxidative stress (total antioxidant capacity (TAC), total plasma peroxidase (TPP), oxidative stress index (OSI), vitamin C (vit C and nitric oxide (NO)) and fructose by colorimetry and serum and seminal heavy metals (zinc (Zn), selenium (Se), cadmium (Cd) and lead (Pb)) by atomic absorption spectrophotometry.
Results: Azoospermic and oligozoospermic men had higher serum and seminal peroxides (TPP, p= 0.00), higher serum heavy metals (Zn, Se, Pb, and Cd (p= 0.01)) and lower sperm concentration, %motility, serum and seminal antioxidants (vit C, TAC, NO, GSH (p= 0.01)) compared to normozoospermic men. Higher seminal peroxides (TPP, p= 0.001), heavy metals (Pb and Cd (p= 0.03)) and lower sperm concentration, %motility, and seminal antioxidants (TAC and NO (p= 0.00)) were also observed in azoospermic men compared to oligozoospermic men. Negative correlations were observed between seminal fructose and seminal vit C (r= -0.535, p= 0.015), GSH (r= -0.734, p= 0.000), NO (r= -0.714, p= 0.000), Zn (r= -0.774, p= 0.000) and Se (r= -0.719, p=
0.000) only in azoospermic men.
Conclusion: Elevated heavy metal levels, increased lipid peroxidation and antioxidant depletion is associated with abnormal sperm functions in men studied.
Ilyas Yusuf, Mathias Abiodun Emokpae,
Volume 19, Issue 2 (2-2021)
Abstract
Background: Studies have shown oxidative DNA damage is associated with male infertility.
Objective: This study determines the levels of 8-hydroxy-2′-deoxyguanosine (8-OHdG) and some markers of oxidative stress in seminal fluid of males investigated for infertility and men of proven fertility in Benin City, Nigeria.
Materials and Methods: Semen samples produced by self or assisted masturbation were analyzed by microscopic technique according to the World Health Organization guidelines. Thereafter, samples were centrifuged and seminal fluid plasma separated and stored at -20ºC prior to assay for 8-OHdG and oxidative stress biomarkers. Based on the sperm concentration/count, the overall samples were grouped into the following categories: normospermia (n = 20), oligozoospermia (n = 30), and azoospermia (n = 20). The control group comprised of 30 age-matched males of proven fertility. The seminal fluid 8-OHdG, total antioxidant status, superoxide dismutase and malondialdehyde (MDA) were assayed through ELISA and spectrophotometric methods, respectively.
Results: Seminal plasma level of 8-OHdG and MDA were significantly higher (p = 0.01) in infertile subjects than controls. The mean levels of 8-OHdG and MDA in infertile subjects were higher in azoospermia than oligospermia than normospermia and so, was least in the normospermia. Conversely, the mean levels of total antioxidant status and superoxide dismutase were significantly lower (p = 0.01) in infertile than fertile the control male subjects with levels higher in normospermia than oligospermia and least in azoospermia. Moreover, the seminal 8-OHdG correlated negatively with sperm count (r = -0.359, p = 0.01), percent motility (r = -0.388, p = 0.04), and percent morphology (r = -0.327, p = 0.02).
Conclusion: The assessment of sperm DNA damage in addition to routine seminal fluid analysis may play an important role in specific diagnosis and management of male infertility.
Kassandra Said Fares, Georges Hani Abi Tayeh, Emile Roger Whaibeh, Romy Jihad Louis, Lina Yasser Jaalouk, Yara Matar Matar, Myriam Andraos Mrad,
Volume 23, Issue 1 (1-2025)
Abstract
According to the World Health Organization, 17.5% of the population suffers from infertility. This demonstrates the critical need to expand access to high-quality reproductive care and increase our understanding of the factors that contribute to this issue. This review aims to summarize findings and gaps in the literature regarding diet-related factors and infertility among the Eastern Mediterranean couples poorly studied compared to other populations. The literature search was conducted using PubMed and Scopus databases from January 2012-July 2023. In total, 112 papers described the influence of diet and supplementation on natural and artificial reproductive outcomes in the Eastern Mediterranean Region and were found eligible for the review synthesis. For men, a diet rich in red meat, fatty foods, whole grains, and low in fish, poultry, low-fat dairy products, and vegetables have a positive effect on sperm count. For women, maintaining a healthy weight is crucial for their fertility. Overall, various vitamins and supplements significantly enhance gametes quality, hormonal balance, and antioxidant capacity, despite the results not being consistent across all studies. The findings highlight distinct dietary patterns that mitigate or exacerbate infertility risks, considering macro and micronutrients. Studies unevenly describe potential risk factors, underscoring the need for further exploration across diverse populations.
