272,972 results match your criteria Male Reproductive Organs


COVID-19 Pandemic and Male Fertility: Clinical Manifestations and Pathogenic Mechanisms.

Biochemistry (Mosc) 2021 Apr;86(4):389-396

Molecular Physiology Division, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt.

The novel coronavirus disease-2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has been a major public health emergency worldwide with over 118.27-million confirmed COVID-19 cases and 2.62-million deaths recorded, as of March 12, 2021. Read More

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[Prosthetics after construction of the outer genitalia for transmen].

Urologe A 2021 Apr 30. Epub 2021 Apr 30.

Sektion für rekonstruktive Urologie und geschlechtsangleichende Operationen, Klinik für Urologie und Klinik für roboterassistierte Urologie und Uroonkologie, AGAPLESION Markus-Krankenhaus Frankfurt, Wilhelm-Epstein-Str. 4, 60431, Frankfurt, Deutschland.

Background: Growing awareness of gender identity issues and a rising prevalence of female-to-male transsexualism is increasing demand for surgical solutions that deliver both aesthetically and functionally satisfying outer genitalia for transmen.

Objective: This article summarizes the available prosthetic options, describes different surgical approaches and reviews the outcome of prosthetics for transmen with a focus on penile prosthesis in phalloplasty.

Methods: Current international standards of care, reviews and original publications are critically reviewed and correlated with our own experience with more than 400 transmen at two interdisciplinary referral centres in Frankfurt, Germany and London, UK. Read More

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Severe Acute Respiratory Syndrome Coronavirus 2 and Male Reproduction: Relationship, Explanations, and Clinical Remedies.

Front Physiol 2021 14;12:651408. Epub 2021 Apr 14.

Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

Coronavirus disease 2019 (COVID-2019) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been an ongoing pandemic and worldwide public health emergency, having drawn a lot of attention around the world. The pathogenesis of COVID-19 is characterized by infecting angiotensin-converting enzyme 2 (ACE2)-expressing cells, including testis-specific cells, namely, Leydig, Sertoli, and spermatogenic cells, which are closely related to male reproduction. This leads to aberrant hyperactivation of the immune system generating damage to the infected organs. Read More

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Evaluation of multi-epitope recombinant protein as a candidate for a contraceptive vaccine.

J Reprod Immunol 2021 Apr 15;145:103325. Epub 2021 Apr 15.

Department of Animal Biotechnology, Faculty of Agriculture Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran. Electronic address:

Contraceptive vaccine (CV) is a valuable, non-invasive, and alternative method for purposeful contraception. Sperm antigens are useful targets for producing CVs due to their specialized expression in sperm. In this study, a recombinant protein containing three main sperm epitopes (IZUMO1, SACA3, and PH-20) was designed and evaluated as CV to control fertility in male mice. Read More

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Does mirabegron deteriorate spermatogenesis? A lesson from spinal cord injury cases.

Low Urin Tract Symptoms 2021 Apr 30. Epub 2021 Apr 30.

Department of Urology, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan.

Objectives: To evaluate whether the long-term usage of mirabegron, which was reported to have potential side effects on male reproductive organs in animal studies, was harmful to spermatogenesis in human testis.

Methods: Thirty consecutive patients with spinal cord injury (20-48 years old) who performed clean intermittent catheterization were involved in this study. Ten patients were treated with mirabegron (50 mg/d) for more than 2 years and refrained from using an antimuscarinic agent due to the side effects of constipation and dry mouth. Read More

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Autosegmentation of Prostate Zones and Cancer Regions from Biparametric Magnetic Resonance Images by Using Deep-Learning-Based Neural Networks.

Sensors (Basel) 2021 Apr 12;21(8). Epub 2021 Apr 12.

Department of Radiology, Taipei Veterans General Hospital, Taipei 112201, Taiwan.

The accuracy in diagnosing prostate cancer (PCa) has increased with the development of multiparametric magnetic resonance imaging (mpMRI). Biparametric magnetic resonance imaging (bpMRI) was found to have a diagnostic accuracy comparable to mpMRI in detecting PCa. However, prostate MRI assessment relies on human experts and specialized training with considerable inter-reader variability. Read More

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The Role of Androgens and Androgen Receptor in Human Bladder Cancer.

Biomolecules 2021 Apr 18;11(4). Epub 2021 Apr 18.

Unidad de Investigación Genética, Posgrado en Ciencias Químico Biológicas, Facultad de Química, Universidad Autónoma de Querétaro, Querétaro 76010, Mexico.

Bladder cancer (urothelial carcinoma) is one of the most frequently diagnosed neoplasms, with an estimated half a million new cases and 200,000 deaths per year worldwide. This pathology mainly affects men. Men have a higher risk (4:1) of developing bladder cancer than women. Read More

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[Clinicopathological features of adenocarcinoma of the rete testis].

Zhonghua Bing Li Xue Za Zhi 2021 May;50(5):488-493

Department of Pathology, the First Affiliated Hospital of Fujian Medical University and Key Laboratory of Radiation Biology of Fujian Higher Education Institutions, the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005,China.

To investigate the clinicopathological features, immunophenotype, and differential diagnosis of adenocarcinoma of the rete testis. Four adenocarcinoma cases of the rete testis diagnosed at West China Hospital, Chengdu, China (3 cases, including 2 consultation cases) and the First Affiliated Hospital of Fujian Medical University, Fuzhou, China (1 case) between January 2009 and December 2017 were included. Their clinical, morphologic and immunohistochemical features were analyzed using histological analysis and immunohistochemical staining. Read More

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Creation of a pioneering interdisciplinary genital dermatology unit for Hispanic men: First 269 patients.

Int J STD AIDS 2021 Apr 29:9564624211010056. Epub 2021 Apr 29.

Male Genital Dermatology (Urodermatology) Unit, 226552Hospital de Clínicas "Dr Manuel Quintela", Montevideo, Uruguay.

The role of circumcision in partially protecting against sexually transmitted infections (STIs) and other dermatoses has been documented. Neonatal circumcision is not routinely practiced in South America. Although it is logical to assume that male genital dermatoses are more prevalent in Hispanic men, they are underrepresented in the existing literature. Read More

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Discovery of a complex sclerotized sperm pump in Monotomidae (Coleoptera): Functional morphology and phylogenetic value.

J Morphol 2021 Apr 29. Epub 2021 Apr 29.

Department of Biodiversity and Evolutionary Taxonomy, University of Wrocław, Wrocław, Poland.

In insects, a long ductus ejaculatorius surrounded by a muscular sheath transfers seminal fluids and sperms from the testes into the male copulatory organ, the aedeagus. In several unrelated coleopteran families, a section of the ductus has evolved to form a specialized pumping organ. The most complex forms of this "sperm pump" was known in Lepiceridae and two subfamilies of evolutionary distant Staphylinidae; in these groups two sclerotized funnels situated on ends of the sperm pump provide attachment sites for a remarkably robust compressor muscle. Read More

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MAP3K4 Kinase Activity Dependent Control of Mouse Gonadal Sex Determination†.

Biol Reprod 2021 Apr 28. Epub 2021 Apr 28.

Department of Biological Sciences, University of Memphis, Memphis, TN 38152, USA.

Sex determination requires the commitment of bipotential gonads to either a testis or ovarian fate. Gene deletion of the kinase Map3k4 results in gonadal sex reversal in XY mice, and transgenic re-expression of Map3k4 rescues the sex reversal phenotype. Map3k4 encodes a large, multi-functional protein possessing a kinase domain and several, additional protein-protein interaction domains. Read More

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Internalized Stigma in Pediatric Psoriasis: A Comparative Multicenter Study.

Ann Dermatol 2020 Jun 24;32(3):181-188. Epub 2020 Apr 24.

Department of Medical Education, Akdeniz University School of Medicine, Antalya, Turkey.

Background: Internalized stigma, adoption of negative attitudes and stereotypes of the society regarding persons' illness, has not been studied previously in pediatric psoriasis patients.

Objective: We aimed to investigate the internalized stigma in pediatric psoriasis patients and to determine differences according to factors affecting internalized stigma compared to adult psoriasis patients.

Methods: This multicenter, cross-sectional, comparative study included 125 pediatric (55 female, 70 male; mean age±standard deviation [SD], 14. Read More

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Museomics and phylogenomics with protein-encoding ultraconserved elements illuminate the evolution of life history and phallic morphology of flesh flies (Diptera: Sarcophagidae).

BMC Ecol Evol 2021 Apr 28;21(1):70. Epub 2021 Apr 28.

Center for Integrative Biodiversity Discovery, Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstraße 43, 10115, Berlin, Germany.

Background: The common name of the Flesh flies (Sarcophagidae) usually relates them with organisms feeding on decomposing organic matter, although the biology of one of the largest radiations among insects also includes predation, coprophagy, and even kleptoparasitism. The question of whether the ancestor of all sarcophagids was a predator or a decomposer, or in association to which host have sarcophagids evolved, has thus always piqued the curiosity of flesh fly specialists. Such curiosity has often been hindered by both the impossibility of having a well-supported phylogeny of Sarcophagidae and its sister group to trace live habits and the scarcity of information on the biology of the group. Read More

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Conserved sperm factors are no longer a bone of contention.

Elife 2021 04 28;10. Epub 2021 Apr 28.

Waksman Institute of Microbiology and Department of Genetics, Rutgers University, Piscataway, United States.

Proteins related to a molecule involved in the formation of osteoclasts in bone are required for fertilization in worms, flies and mammals. Read More

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Role of sex-concordant gene expression in the coevolution of exaggerated male and female genitalia in a beetle group.

Mol Biol Evol 2021 Apr 27. Epub 2021 Apr 27.

Department of Zoology, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502, Japan.

Some sexual traits, including genitalia, have undergone coevolutionary diversification toward exaggerated states in both sexes among closely related species, but the underlying genetic mechanisms that allow correlated character evolution between the sexes are poorly understood. Here, we studied interspecific differences in gene expression timing profiles involved in the correlated evolution of corresponding male and female genital parts in three species of ground beetle in Carabus (Ohomopterus). The male and female genital parts maintain morphological matching, while large interspecific variation in genital part size has occurred in the genital coevolution between the sexes toward exaggeration. Read More

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Investigation of the use of microwave ablation with and without cooling urethral perfusion for thermal ablation of the prostate gland in canine cadavers.

Am J Vet Res 2021 May;82(5):395-404

Objective: To investigate the use of microwave ablation (MWA) with cooling urethral perfusion and with no perfusion (MWA-UP and MWA-NP, respectively) for prostate gland ablation in canine cadavers.

Animals: Cadavers of 18 sexually intact male dogs.

Procedures: After technique refinement in 2 cadavers, laparotomy with ultrasound-guided MWA-UP (n = 8) or MWA-NP (8) of the prostate gland was performed in 16 cadavers. Read More

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Prostate organoid technology - the new POT of gold in prostate stem cell and cancer research.

Sheng Li Xue Bao 2021 Apr;73(2):181-196

State Key Laboratory of Oncogenes and Related Genes, Ren Ji-Med X Clinical Stem Cell Research Center, Department of Urology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China.

Organoids are self-organized cellular clusters in three-dimensional culture, which can be derived from a single stem cell, progenitor or cell clusters of different lineages resembling in vivo tissue architecture of an organ. In the recent years, organoids technology has contributed to the revolutionary changes in stem cell and cancer fields. In this review, we have briefly overviewed the emerging landscape of prostate organoid technology (POT) in prostate research. Read More

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Revision of the New World leafhopper tribe Faltalini (Hemiptera: Cicadellidae: Deltocephalinae) and the evolution of brachyptery.

Authors:
James N Zahniser

Zootaxa 2021 Apr 13;4954(1):zootaxa.4954.1.1. Epub 2021 Apr 13.

USDA-APHIS-PPQ MRC-168, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, Washington DC 20013-7012 USA.

The taxonomy of the deltocephaline leafhopper tribe Faltalini (13 genera, 63 species) is revised. A key to all genera and keys to species for each genus are provided. All genera are described and at least one species of each genus is illustrated including images of the habitus, male and female genitalia, and scanning electron microscope (SEM) images of the head, face, and other characters. Read More

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Disersus otongachi/ a new species of Larainae riffle beetles from Ecuador (Coleoptera: Elmidae).

Zootaxa 2021 Apr 16;4963(1):zootaxa.4963.1.12. Epub 2021 Apr 16.

Zoology Lab, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, SK-84523, Bratislava, Slovakia.

We describe here a new species in the genus Disersus Sharp, 1882 from the Otongachi Reserve in Ecuador. Disersus otongachi sp.nov. Read More

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A new species of the genus Teratozephyrus/ Sibatani, 1946 from China (Lepidoptera, Lycaenidae, Theclinae).

Zootaxa 2021 Apr 16;4963(1):zootaxa.4963.1.11. Epub 2021 Apr 16.

Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou 510642, Guangdong, China..

A new species, T. yaolihuoi Huang, Jiang Song sp. nov. Read More

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Description of a new genus and five new species of tube-dwelling spider family Segestriidae (Araneae: Synspermiata) from Odisha, India.

Zootaxa 2021 Apr 16;4963(1):zootaxa.4963.1.4. Epub 2021 Apr 16.

University School of Environment Management, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, New Delhi 110078, India..

The six-eyed spider family Segestriidae is poorly documented from India, with only five species belonging to two genera. Here we describe a new genus, Indoseges gen. nov. Read More

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Contributions to the knowledge of Neotropical Lycaenidae: taxonomy of Johnsonita/ Salazar amp; Constantino, 1995 with descriptions of seven new species (Theclinae: Eumaeini).

Zootaxa 2021 Apr 16;4963(1):zootaxa.4963.1.2. Epub 2021 Apr 16.

Hungarian Natural History Museum, Department of Zoology,H-1088 Budapest,Baross utca 13, Hungary..

The Transandean-Andean genus Johnsonita Salazar Constantino, 1995 is revised on the basis of wing and genitalia morphology. Apart from eight species formerly placed in Johnsonita (Thecla assula Draudt, 1919; Thecla auda Hewitson, 1867; Thecla catadupa Hewitson, 1869; Thecla chaluma Schaus, 1902, Thecla chlamydem Druce, 1907; Thecla pardoa d'Abrera, 1995; Johnsonita johnsoni Salazar Constantino, 1995 and Johnsonita johnbanksi Bálint, 2003), seven new species are described: Johnsonita carpia Bálint, Boyer Pyrcz, sp. n. Read More

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Revised species definitions and nomenclature of the blue and purple/rose Cithaerias/ butterflies (Lepidoptera, Nymphalidae, Satyrinae).

Authors:
Carla M Penz

Zootaxa 2021 Apr 19;4963(2):zootaxa.4963.2.3. Epub 2021 Apr 19.

Department of Biological Sciences, University of New Orleans, 2000 Lakeshore Dr. New Orleans, LA 70148, USA. Courtesy Curator, Department of Natural History, Florida Museum of Natural History.

This study reassesses the taxonomic status of Neotropical blue and purple/rose-colored Cithaerias butterflies, thus complementing a previous study of the rose-colored species. Based on comparative study of wing coloration and genitalia morphology, I revise species definitions and the taxonomic status of: Cithaerias andromeda, C. azurina STAT. Read More

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emUrolabida/em emgraziae/em, new urostylidid species from the Philippines with comments on the current taxonomy and systematics of the family (Hemiptera: Heteroptera: Urostylididae).

Zootaxa 2021 Apr 14;4958(1):zootaxa.4958.1.45. Epub 2021 Apr 14.

Laboratory of Systematic Entomology, Department of Applied Biology, College of Agriculture and life Sciences, Chungnam National University, Daejeon, Korea..

A new species of Urostylididae from the Philippine islands (Mindanao) is herein described. This new species, similar to Urolabida bipunctata Stål, 1871, differs from the latter in the shape of the external male genitalia. Urolabida bipunctata and the new species, Urolabida graziae Roca-Cusachs, sp. Read More

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Revision of the Neotropical Stilt Bug Genus emMetajalysus/em Štusák (Hemiptera: Heteroptera: Berytidae), with Descriptions of Three New Species.

Zootaxa 2021 Apr 14;4958(1):zootaxa.4958.1.44. Epub 2021 Apr 14.

Systematic Entomology Laboratory, Agricultural Research Service, United States Department of Agriculture, c/o National Museum of Natural History, P. O. Box. 37012, MRC-168, Smithsonian Institution, Washington, D. C. 20013-7013..

The stilt bug genus Metajalysus Štusák is revised and three new species are recognized. A neotype of the type species, M. horvathi Štusák, is designated and the new species M. Read More

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Description of a new species of emDinidor/em Latreille (Hemiptera: Dinidoridae) from the Brazilian Amazon Rainforest, and new records of emD. saucius/em Stål.

Zootaxa 2021 Apr 14;4958(1):zootaxa.4958.1.40. Epub 2021 Apr 14.

University of São Paulo, Museum of Zoology (MZUSP), Av. Nazaré, 481, CEP 04263-000, São Paulo, SP, Brazil..

Dinidor jograziae sp. nov., is described. Read More

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A new species group to emEdessa/em, the emE. ovina/em group, with description of a new species (Heteroptera: Pentatomidae: Edessinae) from Brazil.

Zootaxa 2021 Apr 14;4958(1):zootaxa.4958.1.37. Epub 2021 Apr 14.

Universidade Federal do Pará, Instituto de Ciências Biológicas, Av. Augusto Correa, CEP 66075-110, Belém, Pará, Brazil.

The E. ovina group of species is proposed here to include Edessa ovina Dallas, 1851 from Trinidad and Tobago, Colombia, Paraguay, Brazil, Argentina (new records) and Guyana; E. impura Bergroth, 1891 from Brazil and Argentina (new record); E. Read More

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The genera emAgathocles/em and emSurenus/em (Hemiptera: Heteroptera: Pentatomidae): tribal reassessment, redescription, new synonyms, and description of two new species.

Authors:
S Salini Petr Kment

Zootaxa 2021 Apr 14;4958(1):zootaxa.4958.1.31. Epub 2021 Apr 14.

National Bureau of Agricultural Insect Resources, Bangalore, 560024, India.

The genus Surenus Distant, 1901 (Hemiptera: Heteroptera: Pentatomoidea: Pentatomidae: Pentatominae: Halyini) is revisited and found to be a junior subjective synonym of the genus Agathocles Stål, 1876 (currently Pentatominae: Rolstoniellini). The genus Agathocles and its type species, Agathocles limbatus Stål, 1876, are redescribed. Lectotype of Surenus normalis Distant, 1901 (= Agathocles normalis (Distant, 1901) comb. Read More

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A new species of emCosmoclopius/em Stål, 1866 from Argentina (Hemiptera, Reduviidae).

Zootaxa 2021 Apr 14;4958(1):zootaxa.4958.1.22. Epub 2021 Apr 14.

División Entomología, Museo de La Plata, U.N.L.P., Paseo del Bosque s/nº, B1900FWA, La Plata, Buenos Aires, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET).

A new species of Cosmoclopius Stål, 1866, C. joceliae sp. nov. Read More

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emGraziaphylus/em, a new genus and two new species of emEremophila/em-feeding br /(Scrophulariceae) Phylinae (Insecta: Heteroptera: Miridae) from Australia.

Zootaxa 2021 Apr 14;4958(1):zootaxa.4958.1.18. Epub 2021 Apr 14.

Division of Invertebrate Zoology, American Museum of Natural History, New York 10024 USA.

The new genus Graziaphylus is described to include two new species, Graziaphylus joceliae and G. nigripes. This new taxon is part of a large suite of Heteroptera from Australia known to feed on species of Eremophila (Scrophulariaceae), including other members of the Miridae as well as the Tingidae. Read More

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