Results 111 to 120 of about 7,144,982 (296)

Functional Specialization of Respiratory and Olfactory Mucus Revealed by Proteomic Profiling

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Mucus overlies the nasal mucosa in the respiratory and olfactory regions, which perform distinct physiological functions. However, proteomic differences between respiratory mucosa (RM) and olfactory cleft (OC) mucus remain unclear.
Anna Kristina Hernandez, Karoline Lantzsch, Romain Topalian, Nadine Gunder, Philipp Hubel, Katharina Schindowski, Jens Pfannstiel, Thomas Hummel   +7 more
wiley   +1 more source

Use of bull sperm extenders: current status (review)

Аграрная наука Евро-Северо-Востока
In recent years, assisted reproductive technologies in animal production have included artificial insemination in need of high-quality cryopreserved bull sperm. High-quality freezing depends on the optimally selected parameters of the semen diluent.
D. A. Starikova, O. Yu. Barkova, I. V. Chistyakova, N. V. Pleshanov, A. V. Gabova   +4 more
doaj   +1 more source

Body mass index effects sperm quality: a retrospective study in Northern China

Asian Journal of Andrology, 2017
Excess weight and obesity have become a serious problem in adult men of reproductive age throughout the world. The purpose of this retrospective study was to assess the relationships between body mass index and sperm quality in subfertile couples in a ...
En-Yin Wang, Yan Huang, Qing-Yun Du, Gui-Dong Yao, Ying-Pu Sun   +4 more
doaj   +1 more source

The musculature and skeleton of the pelvic fin of the crocodile shark, Pseudocarcharias kamoharai (Matsubara, 1936) (Elasmobranchii: Lamniformes): Morphology and sexual dimorphism

The Anatomical Record, EarlyView.
This work brings new information on the sexual characteristics of the crocodile shark (Pseudocarcharias kamoharai) exploring the pelvic fin musculature, as well as the siphon sac and the musculature and skeleton of the clasper. Our paper is the first to point out clearly the sexual dimorphism related exclusively to the pelvic fin musculature in males ...
Laura F. Mianutti, Kenshu Shimada, João Paulo C. B. da Silva   +2 more
wiley   +1 more source

Optimization of the process of cryopreservation of reproductive cells in male pikeperch, Sander lucioperca [PDF]

Caspian Journal of Environmental Sciences
The process for cryopreservation of pikeperch sperm was studied as part of the research. The purpose of these studies is to study the effect of different concentrations of DMSO cryoprotectant during cryopreservation of pikeperch sperm on sperm quality ...
Ainur S. Assylbekova, Gulnaz K. Barinova, Kuanysh N. Syzdykov, Ainura D. Mussina, Gulzhan A. Aubakirova, Aizhan B. Makhanbetova, Zhaxygali B. Kuanchaleyev   +6 more
doaj   +1 more source

Quantity versus quality: the sperm war

Asian Journal of Andrology, 2016
The evolution of sperm traits manifests itself prolifically across species, and postcopulatory sexual selection (PSS), as executed by the female, accompanies this process. The adaptive significance of some sperm traits (for example, the shape and number of sperms) is well understood. However, the evolution of germ size has not been fully exploited. The
Shan Xiao, Laixin Xia
openaire   +3 more sources

Tracing the evolutionary history of the morpho‐anatomy of baculum in primates

The Anatomical Record, EarlyView.
Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani, Maria Pia Morigi, Matteo Bettuzzi, Monica Carosi   +3 more
wiley   +1 more source

Male reproductive system in stenopodidean shrimps: Unveiling basal reproductive traits in shrimp‐like Pleocyemata (Stenopodidae and Spongicolidae)

The Anatomical Record, EarlyView.
Abstract Stenopodidea represents one of the basal lineages within Pleocyemata, yet the male reproductive system (MRS) of this group remains poorly understood, with limited information available regarding its morphology and function. This study provides the first detailed description of the MRS in four stenopodidean shrimp species from two families ...
Caio Santos Nogueira, Lucas Rezende Penido Paschoal, Fernando José Zara   +2 more
wiley   +1 more source

Morphophysiological dynamics of the proximal post‐testicular ducts in Crotalus durissus Linnaeus, 1758 (Squamata: Viperidae)

The Anatomical Record, EarlyView.
Abstract The organization and function of reptilian excurrent ducts remain poorly characterized, particularly in Neotropical snakes. We provide the first integrative morphological, histochemical, immunohistochemical, and ultrastructural analysis of the proximal post‐testicular ducts of Crotalus durissus across reproductive stages.
Flávia Cappuccio de Resende, Gustavo Caldeira Cotta, Clara d' Ávila Fonseca Paiva de Paula Freitas, Leonardo Carvalho, Heloísa Helena Marques Oliveira, Victória Gomes Carvalho Silva, Lívia de Fátima Moreira Silva, Luciana Maria Silva, Samyra Maria dos Santos Nassif Lacerda, Guilherme Mattos Jardim Costa   +9 more
wiley   +1 more source

Variable grouping patterns in primates: A test of the better competitor hypothesis in male Verreaux's sifaka (Propithecus verreauxi)

The Anatomical Record, EarlyView.
Abstract Intraspecific variation in social organization (IVSO) within primate populations can arise due to male mating competition. Verreaux's sifaka (Propithecus verreauxi) populations exhibit both single‐male and multi‐male groups, providing an opportunity to examine the relationship between male competitive ability and social organization.
Lemeng Li, Stacey R. Tecot, Rebecca J. Lewis   +2 more
wiley   +1 more source