Results 51 to 60 of about 25,310,483 (331)

Psychological and physiological adaptations to sperm competition in humans [PDF]

, 2005
Postcopulatory competition between males, in the form of sperm competition, is a widespread phenomenon in many animal species. The extent to which sperm competition has been an important selective pressure during human evolution remains controversial ...
Goetz, AT, Pound, N, Shackelford, TK
core   +2 more sources

Acrosome reaction and chromatin integrity as additional parameters of semen analysis to predict fertilization and blastocyst rates

Reproductive Biology and Endocrinology, 2018
BackgroundTraditional semen parameters have shown little to none predictive value for fertilization and blastocyst viability for a successful pregnancy.
P. Tello-Mora, L. Hernández‐Cadena, J. Pedraza, E. López-Bayghen, B. Quintanilla-Vega   +4 more
semanticscholar   +1 more source

Molecular Methods for Rare Hemoglobinopathy Cases: First Brazilian Report of Pediatric Siblings with Hb O‐Arab and Alpha‐Thalassemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Hemoglobinopathies are prevalent globally; diagnosis is complex in high genetic admixture populations like Brazil. We report, in two pediatric siblings, the first documented cases in Brazil of heterozygosity for hemoglobin (Hb) O‐Arab with coinheritance of α‐thalassemia (αα/−α4.2; −α3.7/−α4.2), resulting in microcytic and hypochromic anemia ...
Elisângela de Souza Miranda Muynarsk, Amanda Cristina Meneguetti Berti, Bárbara Braga Vieira Marques, Victoria Simões Bernardo, Flaviene Felix Torres, Ingrid Souza Dias, Vanessa da Silveira Ramos de Castro, Gabriela Alves Bernardino, Danilo Grünig Humberto da Silva, Edis Belini‐Júnior   +9 more
wiley   +1 more source

The effects of age on DNA fragmentation, the condensation of chromatin and conventional semen parameters in healthy nonsmoking men exposed to traffic air pollution

Health Science Reports, 2021
Background Numerous studies have investigated age‐based declines in semen traits, but the impact of paternal age on semen parameter values remains inconclusive.
Jiri Rubes, Jaroslav Sipek, Vera Kopecka, Petra Musilova, Miluse Vozdova, Petra Prinosilova, Jan Topinka, Anna Pastorkova, Vlasta Svecova, Radim J. Sram   +9 more
doaj   +1 more source

Analysis of Corporate Social Responsibility Implementation and Social Audit at PT Semen Padang [PDF]

, 2015
This study describes the implementation of CSR and social audit in PT Semen Padang. PT Semen Padang as one of the largest states owned enterprise in West Sumatra has a big hand in the development of West Sumatra.
Edmawati, S. D. (Sri), Luthan, E. (Elvira)   +1 more
core  

The Efficacy and Safety of Bevacizumab/Irinotecan/Temozolomide (BIT) for Relapsed/Refractory Neuroblastoma: The UK Children's Cancer and Leukaemia Group Experience

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Patients with high‐risk neuroblastoma who either are refractory to induction chemotherapy or relapse following multi‐modal treatment have a dismal prognosis. Based on data from the BEACON trial, since 2021 the UK national guidelines recommend bevacizumab, irinotecan, and temozolomide (BIT) for patients with relapsed/refractory ...
Thomas J. Jackson, Menna Shamma, Upeka Senanayake, Shaimaa Sahmoud, Kathleen Duffin, Victoria Howard, David King, Ayesha Fathani, Blanche Lumb, Andrei Pobischan, Irum Latif Memon, Monzir Ahmed, Rhian Thomas, Gerard Millen, Yasmeen Alomari, Sucheta Vaidya, Lynley V. Marshall, Sally L. George, Ramya Ramanujachar, Juliet Gray, Paola Angelini   +20 more
wiley   +1 more source

Possible involvement of lifestyle factors on reproductive ability among men from an andrology clinic in northern Vietnam [PDF]

Journal of Men's Health
Background: Current research on Vietnamese men’s reproductive health faces limitations. Therefore, this study investigates how lifestyle factors impact semen and reproductive hormones in men visiting an andrology clinic in Northern Vietnam.
Thuy Thi Van Tuong, Long Quang Tien Tran, Hoang Tien Ma, Nga Thuy Pham   +3 more
doaj   +1 more source

Background ionizing radiation and semen parameters of men with reproductive problems

Annals of Agricultural and Environmental Medicine, 2020
Introduction and objective The male reproductive system constitutes a set of tissues which are particularly sensitive to external factors. The aim of the study was to analyze the relationship between background radioactivity and the quality of the semen ...
Artur Wdowiak, Magdalena Stec, Dorota Raczkiewicz, Agnieszka Bień, Grażyna Iwanowicz-Palus, Lech Panasiuk   +5 more
doaj   +1 more source

Echocardiographic and hemodynamic changes in patients with high-grade varicocele

Biomolecules & Biomedicine, 2023
Varicocele is abnormal tortuosity and dilatation of the pampiniform plexus veins within the spermatic cord. Varicocele is associated with testicular atrophy, hypogonadism, impaired semen analysis values, or decreased testosterone production.
Batuhan Ergani, Azmi Eyiol, Mustafa Karabiçak, Mesut Gitmez, Muslu Kazım Körez   +4 more
doaj   +1 more source

Smartphones and Semen Analysis [PDF]

Clinical Chemistry, 2018
In March 1876, when the telephone pioneer Alexander Graham Bell made his historic call to his assistant, Thomas Watson, it is unlikely that either one of them envisaged other applications for a phone, let alone the medical application of a phone that was published in March 2017 by Shafiee and colleagues in Science Translational Medicine (1) (Figure 1).
Larry J, Kricka, Susan, Heyner
openaire   +2 more sources