Percentage Of Dead Spermatozoa Research Articles

Protective effects of Asparagus officinalis (asparagus) against lead toxicity in mice.

One of the most prevalent harmful heavy metals is lead (Pb). It is generally recognized to be harmful to the testicles. Asparagus officinalis has many saponins, flavonoids, and other phenolics with strong antioxidant and anti-inflammatory effects. The effects of A. officinalis (asparagus) aqueous extract (AOAE) on testicular damage caused by lead acetate (PbAc) were investigated in this study. In this way, 20mg/kg PbAc was injected intraperitoneally 2h after mice were administered 400mg/kg AOAE orally for 14days. In the biochemical analysis of testicular tissue, PbAc decreased enzymatic and nonenzymatic antioxidant molecules in testicular tissue, while increasing lipid peroxidation, nitric oxide, inflammatory markers [nuclear factor kappa-B (NF-κB), tumor necrosis factor-alpha (TNF-α), interleukin-1beta (IL-1 β), IL-6, and inducible nitric oxide synthase (iNOS)], and apoptotic-related proteins. Additionally, PbAc was discovered to reduce sperm motility and increase the percentage of dead sperm. However, due to its antioxidant qualities, AOAE has been found to reduce oxidative stress, therefore protecting against inflammation and apoptosis. It also allowed the AOAE sperm parameters to restore to their previous values in the control group. According to the findings, AOAE could be a natural substance that could be used to treat Pb-induced testicular toxicity; this protection may be attributed to its anti-oxidative, anti-inflammatory, and anti-apoptotic effects. However, this study warrants further works to explore in detail the underlying mechanisms of the alleviating effects of AOAE against Pb-induced toxicity and which of its active ingredients is responsible for this protection.

The Effect of Different Extenders on the Quality Characteristics of European Red Deer Epididymal Sperm Stored at 5 °C.

Simple SummaryThe use of commercial extenders for storing cervid epididymal spermatozoa in a liquid state can contribute to popularizing this method of semen preservation in cervid farms. The aim of this study was to assess the effect of various extenders (Bovidyl®, BoviFree®, and BioXcell®) on the quality of European red deer epididymal spermatozoa stored at 5 °C. The analyses demonstrated that the tested extenders and storage time significantly affected sperm motility and functionality of different sperm structures. The Bovidyl® extender containing chicken egg yolk exerted the most beneficial influence on the quality of stored sperm. Spermatozoa stored in the Bovidyl® extender were characterized by satisfactory motility (above 60% on storage day 9) and the functionality over a long period of time. In turn, extenders containing plant-based ingredients and glycerol (BioXcell® and BoviFree®) significantly decreased membrane integrity and mitochondrial activity of spermatozoa already on the first day of storage. These results indicate that European red deer epididymal spermatozoa can be stored in commercial extenders, but their viability and functionality are significantly influenced by the composition of the applied extenders. The extender containing chicken egg yolk without glycerol produced the most satisfactory results. The aim of this study was to evaluate the effect of different extenders on the quality of European red deer epididymal sperm stored at 5 °C. Epididymal spermatozoa were collected post mortem from 10 stags and diluted with three extenders (Bovidyl®, BoviFree®, and BioXcell®) and stored at 5 °C. Sperm motility (TMOT), motility parameters (system CASA), plasma membrane integrity (SYBR-14+/PI−), acrosomal membrane integrity (FITC-PNA−/PI−), mitochondrial activity (JC-1/PI), viability, and apoptotic-like changes (YOPRO/PI) were evaluated. The analyses were conducted on the first and successive days of storage (D1–D7). The applied extender, storage time, and the interactions between these factors significantly (p < 0.001) affected most of the analyzed parameters whose values were highest in sperm samples stored in Bovidyl®, regardless of storage time. In Bovidyl®, BoviFree®, and BioXcell® extenders, TMOT values were estimated at 83%, 63%, and 59%, respectively, on D3. The extenders significantly influenced DNA integrity on D7. The percentage of dead sperm increased from D3. The quality of stored sperm cells was significantly influenced by the extenders’ biochemical composition. BoviFree® and BioXcell® contain glycerol which could contribute to deteriorating the quality of spermatozoa stored at 5 °C. Sperm cells stored in the egg yolk-based extender (Bovidyl®) were characterized by the highest viability and functionality.

Effect of Trigonella Foenum-Graecum Foenugreek oil extract on some parameters of sperms and in vitro fertilization in mic

This project, aims to study the effect of trigonella seeds oil extract on body weight , testes weight and some parameter of reproductive system in male mice , and on In vitro fertilization (IVF) , cleavage stages of embryos in females. Fifteen adult (8-9 weeks) males and females mice were divided into three groups , each group containing 5 mice , first and second groups were treated with (2 and 4 mg/kg body weight) of Trigonella oil extract (intraperitonally) while the third group treated with normal saline as control group . After 35 days of treatment with Trigonella the animals (male and female) were sacrificed by dislocation of cervical vertebrate. Isolated sperms from tail of epidydymis were used for the following tests. Sperm motility, dead / live sperm, sperm abnormalities and serum ws collected to assay testosterone. Isolatation of ova from oviduct after micing in 500μl of TCM-199 media serum blood to assay FSH and LH . Sperm and matured ova were incubated in TCM-199 media for insemination. The results showed increase in body weight and testes weight in groups treated with trigonella. significant increase in sperm activity and decrease in percentage of dead sperm and abnormalities in groups treated with trigonella oil. The male testosterone and female FSH, LH increased significantly in groups treated with trigonella. IVF study showed significant increase in percentage of maturation, fertilization and cleavage (2-4 cells).

The moderating effect of Panax ginseng roots on the male reproductive system and heat shock protein 70 in heat-stressed Japanese quails

This research aims to investigate if ginseng may aid in the reduction of the harmful influence of heatstress on the male reproductive system and the level of heat shock protein70. Eighty mature quails were randomly distributed to four equal groups: the control one reared under normal temperature, the heat-stressed group reared under the temperature of 39±1°C for 4 hrs/day, the heat-stressed group treated with ginseng 500 mg/kg diet, and a group reared under normal temperature and treated with ginseng 500 mg/kg diet. The results showed a significant decrease in red blood cells, white blood cells, lymphocytes, hemoglobin, packed cell volume, total antioxidant capacity, body weight, testis weight, the total number of sperm, and percentage of living sperm, accompanied by a significant increase in MCV, MCHC, heterophil, H/L ratio, heat shock protein70, percentage of dead and malformed sperm in quails exposed to heat stress compared with control. Dietary supplementation of ginseng to birdsexposed to heat stress significantly increased the studiedparameters in comparison to the group under stress. While, the addition of the nutritional supplement ginseng alone led to a significant increase in RBC, Hb, PCV, MCV, TAC, low percentage of monocytes, H/L ratio, and heat shock protein70, compared to the control. We conclude that the administration of ginseng as a diet additive can ameliorate the effects caused by heat stress in quail, which is attributed to the antioxidant effect of Panax ginseng and its ability for scavenging free radicals.

Paullinia cupana seed extract ameliorated methotrexate-induced testicular dysfunction through the regulation of antioxidants, inflammatory, apoptosis/anti-apoptosis, and steroidogenesis-associated genes.

Methotrexate (MXT) is a medication used for cancer and rheumatoid treatment with severe organs toxicity as a side effect. Paullinia cupana (Guarana) is a plant with pleiotropic functions used to overcome the side effects of some chemotherapeutic medications. Current study aimed to examine the possible protective effect of guarana against oxidative stress induced by a single dose of MTX in testis. Forty male mice were divided into 4 groups (8weeks old; 30g weight), 1st group is negative control. The 2nd group is positive intoxicated group, received a single dose of MTX intraperitoneally (IP; 20mg/kg BW in saline) on day 7. The 3rd group received guarana seed extract orally (300mg/kg BW daily) for 12days. The protective group was given guarana seed extract orally for 1week, then on day 7 injected with MTX, and continued with guarana for extra 5days. Blood was taken for biochemical measurement (hormones, antioxidants, cytokines, and oxidative stress biomarkers). Testicular tissues were taken for gene quantification (qRT-PCR), testicular oxidative stress activity (malondialdehyde; MDA, and SOD) and comet assay (sperm DNA damage), and histopathological changes at the end of experimental design. MTX intoxication caused a decrease in testicular SOD, GSH, and catalase and an increase in serum and tissue levels of MDA. Biomarkers of oxidative stress were increased by MTX intoxication, and were ameliorated by guarana administration to MTX-intoxicated mice. Guarana prevented the increase in IL-1β and IL-6 levels compared to mice intoxicated with MTX alone. MTX upregulated the expression of caspase-3 and downregulated Bcl-2 expression using qRT-PCR analysis. These negative impacts of MTX were protected by guarana pre-administration. MTX decreased reproductive hormones and altered spermogram parameters (sperm concentration and motility, and percentage of live and dead sperms). In addition, the mRNA expression of steroidogenesis-associated genes, such cytochrome P450 cholesterol side-chain cleavage enzyme (P450scc), and 17β hydroxyl steroid dehydrogenase (17β-HSD) was downregulated in the MTX-treated group, all were prevented by guarana administration. The sperm DNA damage revealed by a comet assay was increased in MTX group and was reversed to control levels by guarana supplementation. Finally, testis histology of MTX-group showed marked spermatocytes vacuolization and a decrease in spermatogenesis. Guarana administration abrogated histopathological changes reported in the Leydig cells and testicular tissues. In conclusion, guarana has the potential as a supplement medication to antagonize testicular oxidative stress induced by methotrexate.

Protective effect of rosiglitazone on microscopic and oxidative stress parameters of ram sperm after freeze-thawing

The purpose of this study was to investigate the effects of rosiglitazone on ram semen after cryopreservation on the quality of thawed sperm. Sperm motility, membrane functionality, viability, total abnormality, acrosome membrane integrity, mitochondrial activity, reactive oxygen species production, ATP content and apoptotic features were assessed after thawing. Rosiglitazone at concentration of 60 µM resulted in the highest (P < 0.05) total motility, progressive motility and straight-line velocity. The percentages of average path velocity and curvilinear velocity were greater in the 60 µM group. Different concentrations of rosiglitazone did not have significant effects on amplitude of the lateral head displacement, linearity and straightness. The highest amounts of membrane functionality and mitochondrial activity after freeze-thawing were observed in groups containing 60 µM. By increasing the rosiglitazone level to 80 µM, no positive effect was observed in most of the evaluated parameters. The lowest ROS concentration was recorded in 60 µM rosiglitazone group (P < 0.05). The group containing 60 µM rosiglitazone also produced the lowest significant percentage of apoptosis-like changes and dead sperm. A greater (P < 0.05) percentage of acrosome integrity in frozen-thawed spermatozoa was observed in the 60 µM rosiglitazone group. There was no significant difference between 40 and 60 µM rosiglitazone in intact acrosome of ram thawed semen. The result showed that supplementation in ram semen extender with rosiglitazone had a positive role in the regulation of ram sperm motility and had strong protective effect on the sperm membrane and acrosome integrity.

MORPHOLOGICAL EVALUATION OF CISPLATIN-INDUCED TESTICULAR DAMAGE IN WISTAR RATS

Twenty-one Wistar rats weighing 200 - 250 mg were categorized into three treatment groups- the control, saline and the cisplatin groups, each comprising of seven rats per group, to assess the effects of cisplatin-induced testicular damage in Wistar rats. The control group received feed mash and water ad libitum, the saline group received equal volumes of physiological saline intraperitoneally with normal feeds and water, while the cisplastin group received 8 mg/kg body weight of cisplastin only for five days and had normal feeds and water for twelve weeks before sacrifice. The effects of these treatments on total sperm count, sperm motility, percentage live:dead sperm and on testicular and epididymal morphology of the Wistar rats were assessed. The results revealed total sperm count in the cisplatin group as significantly different from control (p&lt;0.001), and the motile sperm count in the cisplatin group was also significantly different from control (p&lt;0.001). Also, there was a greater percentage of dead sperm and more morphologically abnormal forms in the cisplatin group, compared to control. The testicular and epididymal sections of the saline treatment showed normal progression of the spermatogenic germ cell series and normal testicular interstitium. The sections of the testes from the cisplatin group had seminiferous tubules with atrophic changes, detached basement membrane from the seminiferous epithelium, inflammed interstitium with oedema, paucity of Leydig cells, vascular congestion and haemorrhage. The epididymis showed lumen with empty or scanty spermatozoa, necrosis and haemorrhage. These findings affirms the reality of severe gonadotoxicity associated with use of cisplatin as chemotherapeutic agent, especially in the male.

Reproductive effects of sulfoxaflor in male Sprague Dawley rats

The study objective was to evaluate the potential reproductive toxicity of sulfoxaflor (SFX) insecticide in male Sprague Dawley rats. To attain these objectives, forty male Sprague Dawley rats of 10–12 weeks old were randomly divided into four equal groups; the 1st group was used as a control group; the other three groups were exposed to 25, 100, and 500 mg/kg body weight SFX by oral gavage for 4 weeks. Relative testicular weight, testosterone, FSH, LH, MDA, and GPx levels, sperm viability, sperm morphology, sperm DNA damage, and histopathological changes in testes, epididymis, and seminal vesical of these rats were investigated after 4 weeks. The results showed that SFX exposure resulted in a significant increase in FSH, LH, MDA, and GPx levels as well as the percentage of dead and abnormal sperms and DNA damage in rat sperms. Histopathological examination of testes established testicular degeneration with coagulative necrosis as well as the proliferation of interstitial connective tissue infiltrated with inflammatory cells with congestion of intertubular blood vessels in epididymis and degeneration of lining epithelium of seminal vesicles.

Effect of vitamin E supplementation on chicken sperm quality: A meta-analysis.

Background and Aim:Among several factors, the sperm quality of poultry is affected by the rooster’s body size and the availability of antioxidants like vitamin E. This study aimed to determine the effect of dietary vitamin E supplementation on rooster sperm quality through a meta-analysis.Materials and Methods:After verification and evaluation, a total of 19 articles were included in this study. Data, including dietary vitamin E, semen volume, concentration, total sperm cells, pH, motility, viability, percentage of dead and abnormal sperm, vitamin E sperm content, malondialdehyde (MDA) content, and testosterone levels, were tabulated in a database; these were subsequently analyzed using mixed modeling with vitamin E dose as a fixed effect and study identity as a random effect.Results:Dietary supplementation level of vitamin E significantly (p<0.001) affected sperm concentration, significantly affected motility (p<0.001), significantly affected sperm vitamin E (p<0.001), significantly affected viability (p<0.001), and significantly affected chicken sperm fertility (p=0.001). Vitamin E administration also significantly reduced the number of sperm cell deaths (p<0.001); however, increased dietary levels of vitamin E did not affect semen volume (p=0.853), pH (p=0.951), MDA (p=0.542), the percentage of abnormal sperm cells (p=0.343), nor testosterone levels (p=0.063).Conclusion:Dietary vitamin E supplementation is recommended for male chickens since it generally enhances the quality of their sperm.

Impact of different artificial light intensities on some reproductive, productive performance aspects and blood picture of male quail

This experiment was designed to determine the influence of various white light intensities on spermatogenesis, hematology and growth performance of male quail. A total of 80 birds of one day aged had been assigned to four equal groups: G1 control group was kept under natural light program 12h light:12h dark. G2, G3, G4 were exposed to artificial white light emitting diodes at 0.6, 45 and 25 Lux for 5 hours daily for 8 weeks starting at 14 days of age. The result showed that the application of Lux 0.6, 45 and 25 caused a significant increase in heart weight relative to control. Lux 0.6 led to decrease in total body weight, left testis weight and foam weight. The result revealed that exposure to 0.6 Lux caused significant decrease in sperm count and live sperm percentage and increase in dead sperm percentage. Program of 25 Lux generated a significant increase in RBC counts compared to 0.6 Lux. Exposure to 45 Lux and 25 Lux triggers a significant increase in PCV and hemoglobin concentrations. Exposures to 0.6 Lux and 25 Lux resulted in a significant increase in mean corpuscular hemoglobin concentration, while apply to program 0.6 Lux cause increase in stress index. The best feed conversion ratio was detected in normal daylight, 0.6 Lux and 25 Lux respectively. In conclusion, exposure of male quails to different intensities of white LED bulb had an effect on the some physiological and reproductive parameters.

Does ergothioneine and thawing temperatures improve rooster semen post-thawed quality?

The present study focuses on the effect of different levels of ergothioneine and thawing temperature on rooster semen cryopreservation. Semen was diluted in Lake extender containing ergothioneine at 5, 10, 15, and 20 µM and cryopreserved. Two thawing temperatures (37°C for 30 s and 60°C for 5 s) were consequently examined. Sperm motility parameter, membrane integrity, abnormal morphology, viability, apoptotic status, mitochondria activity, and lipid peroxidation were determined after freeze-thaw process. Ergothioneine levels of 5 and 10 µM led to higher (P < 0.05) total motility (66.58 ± 1.44 and 72.11±1.44, respectively) and average path velocity (VAP) (34.54 ± 0.89, 37.28 ± 0.89, respectively). Higher (P < 0.05) significant membrane integrity and mitochondria activity after freeze-thawing were observed in the groups supplemented with 10 µM ergothioneine (68.62 ± 1.24 and 69.12 ± 1.26, respectively). Also, 5 and 10 µM of ergothioneine led to the lowest significant percentage of apoptotic and dead sperm. The total motility and progressive motility resulted in significantly (P < 0.05) higher amount when sperm were thawed with 60°C (60.58 ± 0.91 and 24.76 ± 0.53, respectively) compared to thawed sperm in 37°C. The membrane integrity, viability and mitochondria activity led to significantly (P < 0.05) higher when sperm were thawed with 60°C (58.2 ± 0.78, 63.21 ± 0.80 and 56.85 ± 0.79, respectively). It could be concluded the addition of 5 and 10 µM ergothioneine in the semen extender and thawing temperature at 60˚C in 5 s can be an efficient strategy to preserve rooster cryopreserved semen quality.

The modulatory impacts of Glycyrrhiza glabra extract against methotrexate-induced testicular dysfunction and oxidative stress.

Glycyrrhiza glabra root (licorice) is a widely used herb for its beneficial effects on health. This study explored the protective effects of licorice extract against oxidative stress and testicular dysfunction caused by methotrexate (MTX). Mice were allocated into (i) negative control group that received saline; (ii) licorice extract group, orally administered with 200 mg/kg body weight (bw) licorice extract for 12 days; (iii) positive MTX-intoxicated group, injected with a single intraperitoneal dose of MTX (20 mg/kg bw) on day 7; and (iv) a protective group that received licorice extract for 12 days and then MTX on day 7 as in groups 2 and 3. Total proteins, albumin, globulins, malondialdehyde, glutathione peroxidase, reduced glutathione, IL-1, and IL-6 were measured in blood and testis samples collected from all groups. Testicular oxidative stress, serum reproductive hormones, and spermogram were examined. The expression of steroidogenesis-associated genes (translocator protein; and P450scc) was examined by quantitative real-time PCR. Bcl-2-associated X protein and cyclogenase-2 genes were examined by immunohistochemical analysis. The bioactive contents of licorice extract were confirmed by gas chromatography-mass spectrometry analysis. Pretreatment with licorice extract ameliorated the toxic effects of MTX on total proteins, albumin, and globulins and oxidative stress biomarkers and reversed the effect of MTX on examined serum and tissue antioxidants. Besides, MTX down-regulated mRNA expression of translocator protein and P450scc genes. Licorice extract averted the decrease in serum testosterone and the increase in IL-1β and IL-6 levels induced by MTX. Moreover, MTX increased sperm abnormalities and percentage of dead sperms and reduced sperm motility. These changes were absent in the licorice preadministered group. Licorice prevented the increase in immunoreactivity of testis for Bcl-2-associated X protein and cyclogenase-2 that were overexpressed in MTX-injected mice. Licorice extracts positively regulated the expression of steroidogenesis genes suppressed by MTX, increased antioxidant enzymes (glutathione peroxidase, reduced glutathione, and catalase) and reduced biomarker of oxidative stress (testicular malondialdehyde) and inflammatory cytokines (IL-1 and -6). Moreover, reduction in testicular tissue immunoreactivity to Bcl-2-associated X protein and cyclogenase-2. In conclusion, licorice extract mitigated the toxic effects of MTX-induced testicular dysfunction at biochemical, molecular, and cellular levels.

Effect of Tryptophan injection on the semen quality in Iraqi Shami buck

The aim of this study was to determine the effects of tryptophan injection on semen quality of Shami buck. Animals were divided randomly into four equal groups (3 for each group). Tryptophan was injected in the muscle and semen collected twice weekly by Artificial vagina. The first group (T1) left without treated as control group, the second group (T2) was injection Tryptophan 0.1 g, the third group (T3) was injection Tryptophan 0.125 g and the fourth group (T4) was injection Tryptophan 0.150 g. Semen was collected from twelve Shami buck, 2 ejaculates each, by an Artificial vagina. Semen were evaluated after collected for Volume (ml), Mass and Individual motility (%), sperm concentrations ×109, Live and dead sperm (%) and Sperm abnormality (%). Blood samples were collected via vacationer tubes (5 ml) from jugular vein to analyzed of testosterone hormone. Results showed that tryptophan injection of semen ejaculation was significantly (P<0.05) in T4 and T3. The percentage of Mass activity, Individual motility, live sperm and sperm concentration were significantly increased in the T4, T3 and T2 significantly (P<0.05). The percentage of dead sperm and sperm abnormality were significantly increased (P<0.05) in treatments T1 and T2. The testosterone concentration was significantly higher in the T4 (P<0.05). In conclusion, 0.150 g improved tryptophan injection and testosterone level in Shami buck.

The effect of selenium and vitamin E addition on semen quality of Awassi rams

&nbsp;&nbsp;&nbsp;&nbsp; This study conducted in sheep farm/faculty of Agriculture/Kirkuk University on 16 young Awassi rams at age 15-16 months to determine the effect of Selenium and Vitamin E oral administration in some semen characteristics. Rams were divided randomly into four groups, the 1st group (T1) without treatment as control while the 2nd and 3rd groups (T2 and T3) were orally administered with 0.1 or o.2 mg mixed with 1000 IU vit. E respectively, while T4 was administered with only 1000 IU of vitamin E for 3 months. Ejaculate volume, pH, mass mobility and individual motility, precentage of normal, dead and abnormal sperm, sperm concentration were studied at end of each of 3rd month of the study. Selenium and vitamin E treatments had significantly increased pH in the treatments T2 and T3 compared with the control and T4 during the 1st month. In 2nd month T4 surpass significantly T3 and in 3rd month both T4 and T2 surpass significantly T3. &nbsp;Sperm concentration showed significant increase in T3 in comparison to other treatments in 2nd month, in 3rd month T3 and T4 were significantly higher than T2. Mass mobility showed significant incease in T4 during 2nd month while T2 increased significantly during 3rd month in comparison to control, T3 and T4. Individual mobility showed significant increase in T4 in comparison to control, T2 and T3 during 2nd month and significant incease in comparison to T3 during 3rd month. Dead sperm percentage recorded significant decrease in T4 in comparison to T2 and T3 in both 2nd and 3rd months. Normal sperm percentage showed significant increase in T4 upon other groups in 2nd month while T2, T3 and T4 showed significant increase upon control in 3rd month. Abnormal sperm percantage recorded significant decrease in T4 in comparison to other groups in 2nd and 3rd months.

Effects of COQ10 with vitamin E supplementation on semen quality and seminal plasma parameters of broiler breeder males

This study aimed at detecting the effects of COQ10 with and without vitamin E on some semen characteristics of the broiler breeder males. Twenty-five males at 43weeks of age divided into five categories of treatment with five replicates. The first treatment (control group) included drenching with corn oil capsules only. The second and fourth treatments were about drenching with capsules containing the COQ10 enzyme at a concentration of 5 mg / male / day with and without10 mg of vitamin E whereas the third and fifth treatments included drenching with capsules containing the Q10 enzyme at a concentration of 10 mg / male / day with and without 10 mg of vitamin E. This whole scheme of treatments was to study their effects on certain semen and seminal plasma properties. The results showed a significant increase (P<0.05) in the ejaculation volume, both individual and mass motility in addition to sperm concentration, all accrediting the fifth treatment. Furthermore, the results clear a significant decrease in the percentage of dead and abnormal sperms. The COQ10 with and without vitamin E led to improved semen quality marking a reduction in AST and ALT, glucose concentration and total protein with improved antioxidant status referring to a high level of GSH and low MDA. We conclude from this study that COQ10 with and without vitamin E has the ability to improve the semen characteristics of age-old broiler breeder males and can improve the status of antioxidants in semen.

Chrysin protects against testicular toxicity caused by lead acetate in rats with its antioxidant, anti‐inflammatory, and antiapoptotic properties

In the present study, the protective effects of chrysin (CHR) against testicular damage caused by lead acetate (PbAc) were examined. In this way, 30min after rats were given 25 and 50mg/kg/b.w CHR orally for seven consecutive days, 30mg/kg/b.w PbAc was administered orally. In biochemical analysis of testicular tissue, it was found that PbAc-reduced antioxidant parameters [glutathione peroxidase (GPx), glutathione (GSH), superoxide dismutase (SOD), and catalase (CAT)], while it increased lipid peroxidation, inflammatory markers [nuclear factor kappa-B (NF-κB), cyclooxygenase-2 (COX-2), prostaglandin E2 (PGE-2), and inducible nitric oxide synthase (iNOS)], and 8-hydroxy-2'-deoxyguanosine (8-OHdG). In the immunohistochemical examination, it was determined that PbAc increased the expression of tumor necrosis factor-α (TNF-α) and caspase-3. Accordingly, PbAc was found to cause a decrease in sperm motility and an increase in the percentage of dead sperm. However, it has been observed that CHR relieves oxidative stress due to its antioxidant properties, thus protecting against inflammation and apoptosis. It also allowed the CHR sperm parameters to return to control group levels. The results revealed that CHR could be a natural substance to be used in Pb-induced testicular toxicity. PRACTICAL APPLICATIONS: Lead (Pb) is an important environmental contaminant heavy metal. Pb is believed to reduce fertility in men. Oxidative stress plays a significant role in the damage caused by Pb to testicular tissue. CHR is an antioxidant substance that occurs naturally in various plants and has various pharmacological properties. In the present study, it was investigated whether CHR has a protective effect against testicular toxicity induced by PbAc. The results revealed that in rats, CHR protects the testicular tissue from PbAc toxicity by showing antioxidant, anti-inflammatory and anti-apoptotic effects, thus bringing sperm parameters closer to normal.

Study the Physiological Effects of Finasteride (Prostacare) on some Reproductive Parameters in Male Rats (Rattus- Rattus)

This study was conducted in the veterinary medicine college in basrah university animal house and aimed to investigate the effect of finasteride (prostacare) on malesome parameters reproductive system in albino male rats (Rattua-Rattus). Thirty six mature male rats with body weight 200-210 g and age 8 weeks were randomly divided into three groups (12 animal each group). The first group was considered as control group and treated orally normal salin (0.9%N.S)during the experimental 30 days , the second group was treated finasteride(0.016mg/kg of body weigt oraiiy during the experimental(30)days.and the third group was administrated finasteride(0.032mglkg of body weigt orally during the experimental 30 days. The results showed a significant decrease in the sperm count ,sperm motility ,live sperm and increase in dead sperm percentage as well as a significant decrease in the level of reproductive hormones (testosterone, LH and FSH) in treated group with finasteride compared with control group , from this study it was concluded that the finasteride has undesired physiological effects on fertility in albino male rats (Rattus-Rattus).

Aromatase Inhibitor, Flax seed and Sage Effects on Adult Rats Fertility and Sexual Behavior

The current study was designed to detect estrogen role in adult male rats by giving aromatase inhibitor ( ltrozole 1 mg̷ Kg. B. W) for 60 days orally to inhibit aromatase enzyme activity and to study the effect of giving source of estrogen flax seeds (25 g ̷ 100 g diet) and aqueous extract sage (1000mg ̷ Kg. B.W.) orally. The study showed that adult male rats treated with ltrozole resulted in a significant decrease in the weight of testes, prostate , percentage of live sperms , number of sperms , number of mounting , intromission, ejaculation and in the time period from mixing with females to the first mounting , intromission and ejaculation , the time period between mount and another, intromission and another, ejaculation and another, and significant increase in the percentages of dead as well as abnormal sperms. Flax seeds treatment significantly reduced percentage of live sperms, number of sperms, number of mounting , intromission, and ejaculation, and significantly increased percentage of dead sperms compared with control group. Sage extract treatment caused a significant decrease in number of sperms, number of mounting, intromission and ejaculation , as well as a significant increase in the time period from mixing of female to the first mounting, first intromission and first ejaculation compared with control. The results showed that administration of sage extract with letrozole showed a significant increase in testis weight, percentages of live sperms and number of sperms, and asignificant decrease in dead and abnormal sperms compared with the letrozole group. Administration of flax seed with letrozole did not significantly change weight of the testis , prostate, percentage of live, dead , abnormal sperm and number of sperm compared with letrozole group. Administration of Flax seed and sage extracts to male rats treated with letrozole did not significantly change all the done tests of sex behavior. The study concluded that estrogen has an important role in the function of male reproductive system, which is shown through the negative effects of the aromatase inhibitor on the weights of the testis, prostate, live and dead and abnormal sperm, and sexual behavior. Sage extract, but not flax seed, has benefit effects on the defect induced by aromatase inhibitor letrozole both flax seed and sage do not produce positive effects on sexual behavior .

Effect of licorice extract (Glycyrrhiza glabra) on some semen traits for local black turkey males

This study was conducted at the poultry farm for department of Allatefya Researches, Agricultural and biological researches directorate, ministry of sciences and technology, during the period from 20/8/2019 to 28/12/2019. The aim of this study was to investigate the effect of licorice ( Glycyrrhiza glabra) extract on some semen traits for local black turkey males. A total of 36 local Iraqi turkey males in 44 weeks old were used in this study. The turkey males were randomly distributed on 4 treatments, each treatments consisted of 9 birds depends on level of licorice addition. Birds were fed during the experimental period on diet contain 2950 Kcal metabolic energy / kg and 18 % crude protein/ kg. Licorice extract was added with drinking water for three levels 5g, 10g, and 15g to treatments T2, T3 and T4 respectively. While T1 treatment stay without any addition as control group. The birds were housed in ground pens (cages) during this study. Semen was collected after ganders trained for two weeks to give semen before the collection began, the semen collection by using abdominal massage procedure. The characteristics were investigated were ejaculate volume, individual motility, mass motility, sperm concentrations, percentage of dead spermatozoa, deformation spermatozoa ratio and spermatocrit. Results revealed that T4 (15 g per liter) recorded highest values in all traits except in deformation spermatozoa ratio as compared with other treatments (T1, T2 and T3) in most of all experimental period. On the other hand T3 (10 g per liter) achieved high significant effect compared with T2 (5 g per liter) and T1 (0 g per liter), whereas T1 recorded lowest values during all experimental period. However, the overall means of all traits achieved the same trend of treatments effect. While deformation spermatozoa ratio trait had not significant affects recorded from licorice extract addition on this study.

Effect of Supplementation of Polyvinylpyrrolidone in Extender on Buffalo Semen Parameters

The current study was planned to evaluate the supplementation of Polyvinylpyrrolidone in extender on cryopreservation of Nili-Ravi buffalo bull semen. The semen samples were collected from Nili-Ravi buffalo (Bubalus bubalis) bull kept at SPU Qadirabad, District Sahiwal, Pakistan. Qualifying semen ejaculates having motility &gt;60%, volume &gt;5-6ml and concentration &gt;0.5 billion/ ml were diluted 50 × 106 motile sperm ml approximately at 37°C in Tris-citric acid extender supplemented with different concentrations of PVP (0.01, 0.05, 0.1mM). The extender without PVP was kept as control. Semen was stored at 4°C for a period of 2 h and kept at 4°C for 4h. Semen was filled in 0.5 ml French straws using suction pump at 4°C, plunged and stored in liquid nitrogen (-196°C). Semen straws were rewarmed at 37°C for 30 seconds and assessed for sperm motility, plasma membrane integrity (PMI), dead sperm percentage and the live sperm percentage. The data on the role of PVP on different parameters of semen quality were analyzed by using ANOVA and RCBD. Higher percentage (P&lt; 0.05) of sperm motility (66.1±7.51 and 59.4±10.72) and PMI (72.9±5.39 and 75.7±6.5) was observed in extenders having 0.05 mM and 0.1mM PVP compared to extenders having 1.5mM PVP and control. The percentage acrosomal integrity was observed greater (P&lt; 0.05) in extended semen containing 0.1mM (68.2±0.50) PVP compared to extenders having 0.01 and control.