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Journal articles on the topic 'Male sperm'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Gentiluomo, Manuel, Alice Luddi, Annapaola Cingolani, et al. "Telomere Length and Male Fertility." International Journal of Molecular Sciences 22, no. 8 (2021): 3959. http://dx.doi.org/10.3390/ijms22083959.

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Over the past decade, telomeres have attracted increasing attention due to the role they play in human fertility. However, conflicting results have been reported on the possible association between sperm telomere length (STL) and leukocyte telomere length (LTL) and the quality of the sperm parameters. The aim of this study was to run a comprehensive study to investigate the role of STL and LTL in male spermatogenesis and infertility. Moreover, the association between the sperm parameters and 11 candidate single nucleotide polymorphisms (SNPs), identified in the literature for their association

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2

Knight, Kathryn. "Sneaker male athletic sperm outstrips harem male sperm to get egg." Journal of Experimental Biology 219, no. 9 (2016): 1269.1–1269. http://dx.doi.org/10.1242/jeb.141887.

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Sudipta Chowdhury and Samarendra Nath Banerjee. "Genotoxic activity of betel nut on germinal cell in Sarcoma 180 ascites tumour bearing male mice." GSC Biological and Pharmaceutical Sciences 16, no. 2 (2021): 171–81. http://dx.doi.org/10.30574/gscbps.2021.16.2.0235.

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The genotoxicity of the ethanolic extract of betel nut was evaluated using sarcoma 180 tumour bearing mouse considering sperm motility, sperm viability, biochemical estimation of fructose in seminal fluid and sperm head morphology assays. Sperm head morphology was studied by H-E staining and Toluidine blue staining method. But Toluidine blue staining method is a reliable method to evaluate the DNA damage of sperms. Ethanolic BNE (betel nut extract) can suppress the percentage of sperm motility, sperm viability and seminal fructose level. In addition, it can also enhance the percentage of DNA d

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de Kretser, D. M., C. Mallidis, K. Ma, and S. Bhasin. "Y Chromosome deletions and male infertility." Reproductive Medicine Review 6, no. 1 (1997): 37–53. http://dx.doi.org/10.1017/s0962279900001393.

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Approximately one in ten couples experience infertility, and in about 40% of these infertile unions there are abnormalities in the fertility of the male partner. The clinical management of these infertile men is less than satisfactory because in 40% of such patients the cause of the abnormalities of sperm production and quality is unknown. The possibility that genetic disorders may account for a proportion of these disturbances of sperm production has been raised. It is well recognized that chromosomal abnormalities such as Klinefelter's syndrome cause azoospermia and that gene defects are the

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Belayeva, N. S. "Relation of the male gametes with embryo sec cells. The hypothesis of double fertilization." Acta Societatis Botanicorum Poloniae 50, no. 1-2 (2014): 173–75. http://dx.doi.org/10.5586/asbp.1981.026.

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The sperms one after another get out of synergids. The front sperm gets the first into the egg cell attraction zone and then the sperm comes into contact with egg membrane. At this moment Attraction ceases and the second sperm is led by a current of cytoplasma to the central nucleus. In the egg cell the sperm nucleus is led to the nucleus by cytoplasmic current too. After fertilization the character of cytoplasmic motion changes, because of a cell membrane damage. The presence of the sperm in the female nuclei may also serve as a regulating factor.

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Mohamed, Amal, Aza Hassan, Magdy Amer, and El-Said Abdel-Aziz. "The effects of oral ketoconazole and griseofulvin on the fertility of male rabbits." Mansoura Veterinary Medical Journal 21, no. 2 (2020): 32–38. http://dx.doi.org/10.35943/mvmj.2020.21.2.0203.

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Objectives: To investigate possible side effects of ketoconazole and griseofulvin on fertility of clinically healthy male rabbits. Design: Randomized controlled experimental study. Animals: Thirty mature male rabbits. Procedures: Rabbits were randomly allocated into three equal sized groups (10 animals each). The first group served as a control group (received no treatment), the second group received griseofulvin (25 mg/kg B.W) orally for 30 days, and the third group received ketoconazole (50 mg/kg B.W) orally for 30 days. Semen samples were collected after 1 day, 1 week and 2 weeks post-admin

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Gasparini, Clelia, Jennifer L. Kelley, and Jonathan P. Evans. "Male sperm storage compromises sperm motility in guppies." Biology Letters 10, no. 11 (2014): 20140681. http://dx.doi.org/10.1098/rsbl.2014.0681.

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Sperm senescence can have important evolutionary implications due to its deleterious effects on sperm quality and offspring performance. Consequently, it has been argued that polyandry (female multiple mating) may facilitate the selection of younger, and therefore competitively superior, sperm when ejaculates from multiple males compete for fertilization. Surprisingly, however, unequivocal evidence that sperm ageing influences traits that underlie sperm competitiveness is lacking. Here, we used a paired experimental design that compares sperm quality between ‘old’ and ‘young’ ejaculates from i

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Wedell, Nina, Matthew J. G. Gage, and Geoffrey A. Parker. "Sperm competition, male prudence and sperm-limited females." Trends in Ecology & Evolution 17, no. 7 (2002): 313–20. http://dx.doi.org/10.1016/s0169-5347(02)02533-8.

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9

Y. Falih, Marwah, Abbas A. Mohammed, and Ghassan M. Sulaiman. "The Morphological Effects of Methandienone on Sperm Head in Male Mice." Biosciences, Biotechnology Research Asia 15, no. 3 (2018): 643–48. http://dx.doi.org/10.13005/bbra/2671.

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The objective of the present study is to detect the effects of methandienone on sperm head morphology of male (Mus musculus) mice. For this purpose 55 adult male mice were used and divided into five groups: both of the control -ve and control +ve (CFA) have consisted of 5 mice, and the other three treated groups consisted of 15 mice injected orally with three doses (low, medium and high) (0.125, 0.25, 0.5) mgkg body weight methandienone, with periods (7, 21, 35) days. At the end of the treatment periods morphological abnormalities of sperm were examed. The results showed the presence of abnorm

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Sherman, Craig D. H., Erik Wapstra, and Mats Olsson. "Consistent male–male paternity differences across female genotypes." Biology Letters 5, no. 2 (2009): 232–34. http://dx.doi.org/10.1098/rsbl.2008.0796.

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In a recent paper, we demonstrated that male–female genetic relatedness determines male probability of paternity in experimental sperm competition in the Peron's tree frog ( Litoria peronii ), with a more closely related male outcompeting his rival. Here, we test the hypothesis that a male–male difference in siring success with one female significantly predicts the corresponding difference in siring success with another female. With male sperm concentration held constant, and the proportion of viable sperm controlled statistically, the male–male difference in siring success with one female str

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11

DE, Bitet. "Neisseria Gonorrheae: A Cause of Male Infertility." Open Access Journal of Microbiology & Biotechnology 6, no. 1 (2021): 1–7. http://dx.doi.org/10.23880/oajmb-16000183.

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Background: Gonorrhoea is a sexually transmitted infection that is commonly related to male infertility. The infection affects sperm transport through the urinary tract and subsequent damage of the testicular tubes. The infection also impair sperm production as the infection is rarely asymptomatic and can be difficult to diagnose, it is possible that its contribution to male infertility is underestimated. Infection of the genitals results in a purulent (pus-like) discharge from the genitals which may be foul smelling, inflammation, redness, swelling, dysuria, and a burning sensation during uri

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12

Simmons, Leigh W., and John L. Fitzpatrick. "Sperm wars and the evolution of male fertility." REPRODUCTION 144, no. 5 (2012): 519–34. http://dx.doi.org/10.1530/rep-12-0285.

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Females frequently mate with several males, whose sperm then compete to fertilize available ova. Sperm competition represents a potent selective force that is expected to shape male expenditure on the ejaculate. Here, we review empirical data that illustrate the evolutionary consequences of sperm competition. Sperm competition favors the evolution of increased testes size and sperm production. In some species, males appear capable of adjusting the number of sperm ejaculated, depending on the perceived levels of sperm competition. Selection is also expected to act on sperm form and function, al

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13

Journal, Baghdad Science. "Studying some Immunological and Hormonal profiles in Infertile Male." Baghdad Science Journal 8, no. 1 (2011): 381–87. http://dx.doi.org/10.21123/bsj.8.1.381-387.

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The present study was designed to evaluate the immunological status in a sample of Iraqi males with primary infertility and them age range18-55 years, who were attending the Centre of Infertility and in vitro Fertilization (Kamal Al-Samaraie Hospital, Baghdad) during the period December 2008 – April 2009. They were divided into three groups; 40 patients with anti-sperm antibodies (ASA), 20 patients with Asthenozoospermia (AST) and 20 patients with azoospermia (AZO). In adition to20 fertile males was as control group. The parameters of evaluations were standard seminal fluid analysis, anti-sper

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Birkhead, T. R., and Fiona Fletcher. "Sperm to spare? Sperm allocation by male zebra finches." Animal Behaviour 43, no. 6 (1992): 1053–55. http://dx.doi.org/10.1016/s0003-3472(06)80020-5.

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15

Toshimori, Kiyotaka, and Chizuru Ito. "Sperm function and male infertility." Journal of Reproductive Immunology 112 (November 2015): 143. http://dx.doi.org/10.1016/j.jri.2015.09.068.

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Mapira Tendayi, Herbert, Jerome Ndayisenga, Solange Nyiramahirwe, et al. "Relationship Between Sperm Quality and Male Reproductive Hormones Among Male Partners with Fertility Complications: Attending CHUB." Rwanda Journal of Medicine and Health Sciences 3, no. 3 (2020): 315–28. http://dx.doi.org/10.4314/rjmhs.v3i3.4.

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Background Infertility remains a highly prevalent global condition in the second decade of the new millennium. Reproductive hormones determine sperm quality as they initiate and maintain spermatogenesis. Hormonal imbalance can cause abnormal sperm quality that can be treated by hormonal replacement therapy. Objective To assess the relationship between sperm quality and male reproductive hormones among male partners with fertility complications attending CHUB. Methods The study was a descriptive cross-sectional, and a convenient sampling strategy was used to recrui

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17

S. Vishwekar, Pallavi, Nikita Lad, Mamta Shivtare, and Pradnya Shetty. "ICSI outcome in surgically retrieved sperm compared with ejaculated sperm control." International Journal of Reproduction, Contraception, Obstetrics and Gynecology 8, no. 3 (2019): 869. http://dx.doi.org/10.18203/2320-1770.ijrcog20190847.

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Background: Globally, the prevalence of infertility is around 10% of the total population. 30% of these have male factor infertility. Azoospermia is found in 1% of men, in 20% of which, the etiology is a bilateral obstruction of the male genital tract while others have non obstructive azoospermia. In azoospermic men sperms are microsurgically retrieved from epididymis and testes by TESA and PESA respectively. The aim of this study was to evaluate the outcomes of intracytoplasmic sperm injection ICSI using surgically retrieved sperm of azoospermic men either obstructive or nonobstructive and to

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18

Avery, Susan M. "IVF and male infertility." Reproductive Medicine Review 1, no. 2 (1992): 151–64. http://dx.doi.org/10.1017/s0962279900000508.

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Male infertility, while having a variety of causes, is generally discussed in terms of semen parameters. While the World Health Organization (WHO) have been able io set limits for semen parameters below which a male can be considered subfertile (20 million/ml; >50% motility; >50% morphologically normal forms), it is well documented thatin vivoconceptions have been achieved where semen quality falls well outside these limits, and that infertile men may have normal semen parameters. Macleod and Gold in comparing 1000 fertile men and 1000 infertile men, found that significantly more inferti

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Zeqiraj, Afrim, Sheqibe Beadini, Nexhbedin Beadini, et al. "Male Infertility and Sperm DNA Fragmentation." Open Access Macedonian Journal of Medical Sciences 6, no. 8 (2018): 1342–45. http://dx.doi.org/10.3889/oamjms.2018.311.

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BACKGROUND: One of the main factors affecting male infertility is DNA fragmentation in sperm. Male infertility is a heterogeneous group of disorders, known causes account for only 30-50%, and unknown cause (idiopathic) constitute the rest. Infertility involves nearly 15% of couples in the reproductive age, and only the male problem involves about 40% of the problems.AIM: We have studied our DNA damage to sperm cells of a group of infertile males (113 patients) with abnormal sperm parameters (oligoasthenospermia and oligospermia) and a group of male patients (80 patients) with normal semen para

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20

Raouf, Chro Ghafoor, and Mahmood Othman Ahmad. "Suspected Protective Effect of Eruca Sativa Leaves Extract on Sperm Abnormalities in Male Albino Mice Treated with Hypericum triqutrifolium aqueous crude extract." UHD Journal of Science and Technology 3, no. 2 (2019): 87. http://dx.doi.org/10.21928/uhdjst.v3n2y2019.pp87-92.

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 This study was carried out to evaluate the effect of Eruca sativa on the cytotoxic effect of Hypericum triquetrifolium on sperm abnormalities in albino mice. Leaves of E. sativa and aerial parts of H. triquetrifolium were dried in shade and grinded and their aqueous extracts were used for the treatments to study their effect on sperm morphology. Treated groups were injected with a single dose of 38 mg/kg body weight (BW) of Hypericum subcutaneously, while the Eruca groups were orally administered with 250 mg/kg BW twice/week for 2 weeks. After the exposure of H. triquetrifolium, the fre

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21

Wang, Dan, Liping Cheng, Wenjuan Xia, et al. "LYPD4, mouse homolog of a human acrosome protein, is essential for sperm fertilizing ability and male fertility†." Biology of Reproduction 102, no. 5 (2020): 1033–44. http://dx.doi.org/10.1093/biolre/ioaa018.

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Abstract Fertilization is one of the fundamental biological processes, but so far, we still do not have a full understanding of the underlying molecular mechanism. We have identified a human acrosome protein, LY6/PLAUR domain containing 4 (LYPD4), expressed specifically in human testes and sperm, and conserved within mammals. Mouse Lypd4, also specific to the testis and sperm, is essential for male fertility. LYPD4 protein first appeared in round spermatids during acrosome biogenesis and became part of acrosomes during spermatogenesis and in mature sperm. Lypd4 knockout mice are infertile with

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Malo, Aurelio F., Montserrat Gomendio, Julian Garde, Barbara Lang-Lenton, Ana J. Soler, and Eduardo R. S. Roldan. "Sperm design and sperm function." Biology Letters 2, no. 2 (2006): 246–49. http://dx.doi.org/10.1098/rsbl.2006.0449.

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Spermatozoa vary enormously in their form and dimensions, both between and within species, yet how this variation translates into fertilizing efficiency is not known. Sperm swimming velocity is a key determinant of male fertilization success, but previous efforts to identity which sperm phenotypic traits are associated with swimming velocity have been unsuccessful. Here, we examine the relationship between the size of several sperm components and sperm swimming velocity in natural populations of red deer ( Cervus elaphus hispanicus ) where selective pressures to enhance male reproductive succe

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Ara, Mah Jabeen, Sk Md Bahar Hussain, and Mamun Ur Rashid. "Role of Male Partners in 100 Infertile Couples." Journal of Armed Forces Medical College, Bangladesh 11, no. 1 (2016): 50–53. http://dx.doi.org/10.3329/jafmc.v11i1.30670.

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Introduction: Approximately 15% of couples are infertile. Male infertility plays an important role in about half of these couples. This study has been done to determine whether sperm morphology and motility do really affect sperm count or spermatogenesis and at the same time causes a problem with fertility.Objectives: The objective of this study was to evaluate a males inability to cause pregnancy in a fertile female.Materials and Methods: This is a prospective study of 100 diagnosed infertile and subfertile couples in the age group of 23-58 yrs old male. They were selected from 01 March 2013

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Mermer, Meltem, and Yasemin Akdevelioğlu. "The role of obesity in male fertility." International Journal of Reproduction, Contraception, Obstetrics and Gynecology 7, no. 9 (2018): 3435. http://dx.doi.org/10.18203/2320-1770.ijrcog20183749.

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Obesity causes many health problems as well as having negative effects on fertility. There is a multifaceted relationship between obesity and male infertility. Male fertility is associated with sperm concentration, motility and morphology. Testosterone (total and free) and gonadotropin levels were low and estrogen levels were found to be high in obese men. The decrease in androgen levels varies based on the degree of obesity. High body mass index is inversely related to total sperm count, sperm concentration, sperm morphology and number of motile sperm. Leptin and ghrelin are hormones that inf

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Bonyadi, F., S. Hasanzadeh, H. Malekinejad, and G. Najafi. "Cyclopiazonic acid decreases sperm quality and in vitro fertilisation rate in mice." World Mycotoxin Journal 11, no. 4 (2018): 599–610. http://dx.doi.org/10.3920/wmj2018.2337.

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The presence of cyclopiazonic acid (CPA) as a mycotoxin has been reported in feed and foodstuffs. The aim of this investigation was to determine the effects of CPA on reproductive functions of male mice. In this experiment, 40 mature male mice were randomly assigned into five groups (n=8): control, control-sham, CPA (0.03 mg/kg, body weight (BW)), CPA (0.06 mg/kg, BW) and CPA (0.12 mg/kg, BW). Following 28 days exposure to CPA, sperm quality parameters, in vitro fertilisation (IVF) capacity of sperms, serum testosterone level, Leydig cells number and serum total antioxidant capacity (TAC) were

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Duan, Yong-Gang, U. P. Wehry, B. A. Buhren, et al. "CCL20-CCR6 axis directs sperm–oocyte interaction and its dysregulation correlates/associates with male infertility‡." Biology of Reproduction 103, no. 3 (2020): 630–42. http://dx.doi.org/10.1093/biolre/ioaa072.

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Abstract The interaction of sperm with the oocyte is pivotal during the process of mammalian fertilization. The limited numbers of sperm that reach the fallopian tube as well as anatomic restrictions indicate that human sperm–oocyte encounter is not a matter of chance but a directed process. Chemotaxis is the proposed mechanism for re-orientating sperm toward the source of a chemoattractant and hence to the oocyte. Chemokines represent a superfamily of small (8–11 kDa), cytokine-like proteins that have been shown to mediate chemotaxis and tissue-specific homing of leukocytes through binding to

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Kaliky, Nunun Ainun Putri Sari Banun, Mia Setiawati, Odang Carman, and Nur Bambang Priyo Utomo. "Effect of zinc (Zn) supplementation on quality and quantity of striped catfish Pangasianodon hypophthalmus sperm." Jurnal Akuakultur Indonesia 18, no. 1 (2019): 46–53. http://dx.doi.org/10.19027/jai.18.1.46-53.

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ABSTRACT This study aimed to evaluate the effects of Zinc (Zn) supplementation on the quality and quantity of striped catfish sperm. Experimental design for this study was a complete randomized design with five treatments and five replications. Male broods fed with Zn supplementation for eight weeks. The Zn supplemented into the fish diet at different concentrations (0, 50, 100, 150 and 200 mg/kg of feed). The results showed that Zn supplementation could improve the quality and quantity of striped catfish sperm. The treatments also showed significant effects on semen volume, sperm motility, sp

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Nosrati, Reza, Max M. Gong, Maria C. San Gabriel, Claudio E. Pedraza, Armand Zini, and David Sinton. "Paper-Based Quantification of Male Fertility Potential." Clinical Chemistry 62, no. 3 (2016): 458–65. http://dx.doi.org/10.1373/clinchem.2015.250282.

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Abstract BACKGROUND More than 70 million couples worldwide are affected by infertility, with male-factor infertility accounting for about half of the cases. Semen analysis is critical for determining male fertility potential, but conventional testing is costly and complex. Here, we demonstrate a paper-based microfluidic approach to quantify male fertility potential, simultaneously measuring 3 critical semen parameters in 10 min: live and motile sperm concentrations and sperm motility. METHODS The device measures the colorimetric change of yellow tetrazolium dye to purple formazan by the diapho

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Beeram, Eswari. "EFFECT OF METOSARTAN ON MALE REPRODUCTIVE POTENTIAL IN NORMAL AND HYPERTENSION INDUCED RATS." Journal of Drug Delivery and Therapeutics 8, no. 5 (2018): 400–406. http://dx.doi.org/10.22270/jddt.v8i5.1891.

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Hypertension is one of the long term medical problems in world leading to mortality of 18% globally. Epigenetic modifications like gene regulation, DNA histone modification and methylation patterns are mostly affected during Hypertension condition and need to be carefully monitored. So, metosartan is the one of the antihypertensive drug used to study its effects on genome especially in invivo condition. Metosartan doesn’t affect the chromatin integrity in hypertensive rats but reduces the sperm count drastically and reaches up to zero at 1.25mg/ml concentration. Majorly the drug affects the sp

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Verspoor, Rudi L., Tom A. R. Price, and Nina Wedell. "Selfish genetic elements and male fertility." Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1813 (2020): 20200067. http://dx.doi.org/10.1098/rstb.2020.0067.

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Selfish genetic elements (SGEs) are diverse and near ubiquitous in Eukaryotes and can be potent drivers of evolution. Here, we discuss SGEs that specifically act on sperm to gain a transmission advantage to the next generation. The diverse SGEs that affect sperm often impose costs on carrier males, including damaging ejaculates, skewing offspring sex ratios and in particular reducing sperm-competitive success of SGE-carrying males. How males and females tolerate and mitigate against these costs is a dynamic and expanding area of research. The intense intra-genomic conflict that these selfish e

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Eisenberg, Michael L., Lata Murthy, Kathleen Hwang, Dolores J. Lamb, and Larry I. Lipshultz. "Sperm counts and sperm sex ratio in male infertility patients." Asian Journal of Andrology 14, no. 5 (2012): 683–86. http://dx.doi.org/10.1038/aja.2012.58.

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Imamoto, Takashi, Hiroyoshi Suzuki, Tomohiko Ichikawa, et al. "Testicular sperm extraction with intracytoplasmic sperm injection for male infertility." Reproductive Medicine and Biology 2, no. 1 (2003): 31–35. http://dx.doi.org/10.1046/j.1445-5781.2003.00017.x.

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Alameri, Mohammed, Khairunnisa Hasikin, Nahrizul Adib Kadri, et al. "Multistage Optimization Using a Modified Gaussian Mixture Model in Sperm Motility Tracking." Computational and Mathematical Methods in Medicine 2021 (August 29, 2021): 1–14. http://dx.doi.org/10.1155/2021/6953593.

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Infertility is a condition whereby pregnancy does not occur despite having unprotected sexual intercourse for at least one year. The main reason could originate from either the male or the female, and sometimes, both contribute to the fertility disorder. For the male, sperm disorder was found to be the most common reason for infertility. In this paper, we proposed male infertility analysis based on automated sperm motility tracking. The proposed method worked in multistages, where the first stage focused on the sperm detection process using an improved Gaussian Mixture Model. A new optimizatio

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Rashki Ghaleno, Leila, AliReza Alizadeh, Joël R. Drevet, Abdolhossein Shahverdi, and Mojtaba Rezazadeh Valojerdi. "Oxidation of Sperm DNA and Male Infertility." Antioxidants 10, no. 1 (2021): 97. http://dx.doi.org/10.3390/antiox10010097.

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One important reason for male infertility is oxidative stress and its destructive effects on sperm structures and functions. The particular composition of the sperm membrane, rich in polyunsaturated fatty acids, and the easy access of sperm DNA to oxidative damage due to sperm cell specific cytologic and metabolic features (no cytoplasm left and cells unable to mount stress responses) make it the cell type in metazoans most susceptible to oxidative damage. In particular, oxidative damage to the spermatozoa genome is an important issue and a cause of male infertility, usually associated with si

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Oluwaseyi Adegoke Adetunji, Oluwafunmilola Christiana Adetunji, Grace Aimalohi Agbebaku-Izobo, et al. "Toxicological evaluation of a Nigeria-made polyherbal product on selected reproductive functions in adult male Wistar rats." World Journal of Advanced Research and Reviews 11, no. 3 (2021): 001–8. http://dx.doi.org/10.30574/wjarr.2021.11.3.0410.

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Ruzu bitters black for men (RBBM) is a polyherbal product widely used amongst men in Nigeria to enhance libido, rejuvenate male organs and to manage erectile dysfunctions, prostate anomalies, weak erection, and premature ejaculation. This study was carried out to investigate the toxicological effect from the use of herbal product. Acute toxicity test of RBBM on rats was carried out in two phases; 10 mg/kg, 100 mg/kg and 1000 mg/kg for phase I and 1600mg/kg, 2900 mg/kg and 5000 mg/kg for phase II, were administered respectively. For sub-acute toxicity, two groups of 5 animals each received RBBM

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Fatima, Parveen, Nurjahan Begum, Shakeela Lshrat, et al. "Zinc supplementation in male infertility." Bangabandhu Sheikh Mujib Medical University Journal 8, no. 1 (2016): 9. http://dx.doi.org/10.3329/bsmmuj.v8i1.28913.

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<p><strong>Background:</strong> Inferile males have been shown to have lower levels of seminal plasma zinc which have been associated with reduced levels of zinc in their blood. Supplementation improve semen parameters by improving zinc level in blood. </p><p><strong>Objective:</strong> To fnd out whether zinc supplementation is effective in improving semen parameters in oligoasthenozoospermic patients.</p><p><strong>Method:</strong> The study was carried out in the Infertility unit of the Dept of Obs &amp; Gynae, BSMMU dur

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Gomendio, Montserrat, Aurelio F. Malo, Julian Garde, and Eduardo R. S. Roldan. "Sperm traits and male fertility in natural populations." Reproduction 134, no. 1 (2007): 19–29. http://dx.doi.org/10.1530/rep-07-0143.

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Male fertility has seldom been studied in natural populations because it has been assumed that strong selection would result in uniformly high values among males, and therefore mating success has been equated with fertilisation success. In contrast, male fertility has received much attention in studies of domestic livestock, where economic benefits rely on improving productivity, and in human infertility studies, where the efficiency of treatments depends on understanding which ejaculate traits explain reproductive failures and predict success at assisted conception. Despite years of efforts,

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Allouche-Fitoussi, Deborah, and Haim Breitbart. "The Role of Zinc in Male Fertility." International Journal of Molecular Sciences 21, no. 20 (2020): 7796. http://dx.doi.org/10.3390/ijms21207796.

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Several studies proposed the importance of zinc ion in male fertility. Here, we describe the properties, roles and cellular mechanisms of action of Zn2+ in spermatozoa, focusing on its involvement in sperm motility, capacitation and acrosomal exocytosis, three functions that are crucial for successful fertilization. The impact of zinc supplementation on assisted fertilization techniques is also described. The impact of zinc on sperm motility has been investigated in many vertebrate and invertebrate species. It has been reported that Zn2+ in human seminal plasma decreases sperm motility and tha

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Jager, S. "Sperm Nuclear Stability and Male Infertility." Archives of Andrology 25, no. 3 (1990): 253–59. http://dx.doi.org/10.3109/01485019008987614.

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ADEGHE, JUDE-HARRIS A. "Male Subfertility due to Sperm Antibodies." Obstetrical & Gynecological Survey 48, no. 1 (1993): 1–8. http://dx.doi.org/10.1097/00006254-199301000-00001.

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Pizzari, Tommaso, Charles K. Cornwallis, Hanne Løvlie, Sven Jakobsson, and Tim R. Birkhead. "Sophisticated sperm allocation in male fowl." Nature 426, no. 6962 (2003): 70–74. http://dx.doi.org/10.1038/nature02004.

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O’Brien, Jeanne, and Armand Zini. "Sperm DNA integrity and male infertility." Urology 65, no. 1 (2005): 16–22. http://dx.doi.org/10.1016/j.urology.2004.07.015.

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Ferguson, Will. "Sperm stem cells restore male fertility." New Scientist 216, no. 2890 (2012): 10. http://dx.doi.org/10.1016/s0262-4079(12)62861-9.

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Menkveld, R., and T. F. Kruger. "Sperm morphology and male urogenital infections." Andrologia 30, S1 (2009): 49–53. http://dx.doi.org/10.1111/j.1439-0272.1998.tb02826.x.

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Schlegel, Peter N. "Male Infertility: Evaluation and Sperm Retrieval." Clinical Obstetrics and Gynecology 49, no. 1 (2006): 55–72. http://dx.doi.org/10.1097/01.grf.0000197267.02541.ae.

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Ramm, Steven A. "Seminal fluid and accessory male investment in sperm competition." Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1813 (2020): 20200068. http://dx.doi.org/10.1098/rstb.2020.0068.

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Sperm production and allocation strategies have been a central concern of sperm competition research for the past 50 years. But during the ‘sexual cascade’ there may be strong selection for alternative routes to maximizing male fitness. Especially with the evolution of internal fertilization, a common and by now well-studied example is the accessory ejaculate investment represented by seminal fluid, the complex mixture of proteins, peptides and other components transferred to females together with sperm. How seminal fluid investment should covary with sperm investment probably depends on the m

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Lokesh, G., Geetha N. Murthy, Veeranna Gowda, Alok Sahay, and Gargi Gargi. "Conservation of wild silkworm genetic resources through cryopreservation: Standardization of sperm processing." Journal of Applied and Natural Science 10, no. 2 (2018): 544–47. http://dx.doi.org/10.31018/jans.v10i2.1733.

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Conservation of the invaluable sericigenous genetic resources is of prime importance with respect to their utilization and improvement for wider exploitation. Conservation of wild silkworms and its applicability in hybridization have limitations due to incompatibility, less amenability, change of behaviour under ex situ conditions, non-synchronization of moth eclosion and difficulties in mating between variables. In view of this, the newer technologies such as cryopreservation and artificial insemination are offering better strategies for preservation of biologically active samples like semen

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Selmanoğlu, Güldeniz, Sibel Hayretdağ, Dürdane Kolankaya, Aslı Özkök-Tüylü, and Kadriye Sorkun. "The effect of pollen on some reproductive parameters of male rats." Pesticidi i fitomedicina 24, no. 1 (2009): 59–63. http://dx.doi.org/10.2298/pif0901059s.

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Honeybee pollen is consumed as natural food in healthy human diet in many European and Asian countries. The aim of this study was to investigate the effect of pollen use on some reproductive parameters. In this study, mature male rats were fed on pollen of three different plant sources (Trifolium spp., Raphine's spp. and Cistus spp.) at 60 mg/per animal/ per day over a 30-day period. At the end of the treatment, testosterone levels of rats were analyzed and weights of testis, epididymis, prostate and seminal vesicle were recorded. In addition, epididymal sperms were counted. There were increas

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Pizzol, Damiano, Alessandro Bertoldo, and Carlo Foresta. "Male infertility: biomolecular aspects." Biomolecular Concepts 5, no. 6 (2014): 449–56. http://dx.doi.org/10.1515/bmc-2014-0031.

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AbstractMale infertility is a problem that faces increasing interest, and the continuous development of assisted reproduction techniques solicits attempts to identify a precise diagnosis, in particular for idiopathic infertile couples and those undergoing assisted reproductive technique cycles. To date, diagnosis of male infertility is commonly based on standard semen analysis, but in many cases, this is not enough to detect any sperm abnormality. A better understanding of biomolecular issues and mechanism of damaged spermatogenesis and the refinement of the molecular techniques for sperm eval

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Dillasamola, Dwisari, Almahdy A, Feni Elfianita, Skunda Diliarosta, Biomechy Oktomalio P, and Noverial Noverial. "THE EFFECT OF EXTRACT OF DATE PALM FRUIT (PHOENIX DACTYLIFERA L.) ON FERTILITY IN MALE MICE (MUS MUSCULUS L.)." Asian Journal of Pharmaceutical and Clinical Research 12, no. 1 (2019): 418. http://dx.doi.org/10.22159/ajpcr.2018.v12i1.29453.

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Objective: Date palm is one of the plants that have used empirically to increase fertility. Ethanol induction can cause sperm damage in male mice. Sperm damage is one of the infertility agents. The aim of this study was to observe and determine anti-infertility effects of the ethanol extract of date palm fruit in khalal stage in male mice compared with propolis.Methods: A total of 5 groups were assigned to 1 control and 4 experimental groups. Control group was treated by intraperitoneal administration of ethanol only. Meanwhile, experimental groups was treated by intraperitoneal administration

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