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Vas deferens

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https://www.readbyqxmd.com/read/28196530/r248g-cystic-fibrosis-transmembrane-conductance-regulator-mutation-in-three-siblings-presenting-with-recurrent-acute-pancreatitis-and-reproductive-issues-a-case-series
#1
Seiichi Villalona, Guillermo Glover-López, Juan Antonio Ortega-García, Rosa Moya-Quiles, Pedro Mondejar-López, Maria C Martínez-Romero, Mariano Rigabert-Montiel, María D Pastor-Vivero, Manuel Sánchez-Solís
BACKGROUND: Mutational combinations of the cystic fibrosis transmembrane conductance regulator, CFTR, gene have different phenotypic manifestations at the molecular level with varying clinical consequences for individuals possessing such mutations. Reporting cystic fibrosis transmembrane conductance regulator mutations is important in understanding the genotype-phenotype correlations and associated clinical presentations in patients with cystic fibrosis. Understanding the effects of mutations is critical in developing appropriate treatments for individuals affected with cystic fibrosis, non-classic cystic fibrosis, or cystic fibrosis transmembrane conductance regulator-related disorders...
February 15, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28191316/the-contraceptive-efficacy-of-intravas-injection-of-vasalgel%C3%A2-for-adult-male-rhesus-monkeys
#2
Angela Colagross-Schouten, Marie-Josee Lemoy, Rebekah I Keesler, Elaine Lissner, Catherine A VandeVoort
BACKGROUND: Options for male contraception are limited. The purpose of this study was to use a nonhuman primate model to evaluate Vasalgel™, a high molecular weight polymer being developed as a contraceptive device for men. METHODS: Sixteen adult male rhesus monkeys received intravas injections of Vasalgel, consisting of 25% styrene maleic acid in dimethyl sulfoxide. After a one-week recovery, males were returned to outdoor group housing, which included at least 3 and up to 9 intact, breeding females with a successful reproductive history...
2017: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/28166947/effects-of-heat-stress-on-some-reproductive-parameters-of-male-cavie-cavia-porcellus-and-mitigation-strategies-using-guava-psidium-guajava-leaves-essential-oil
#3
Ferdinand Ngoula, Maryvonne Guemdjo Tekam, Augustave Kenfack, Cyrille D'Alex Tadondjou Tchingo, Sandrine Nouboudem, Herman Ngoumtsop, Borice Tsafack, Alexis Teguia, Pierre Kamtchouing, Marco Galeotti, Joseph Tchoumboue
Climate changes, particularly the increase of temperature are among the main causes behind the decline of fertility in humans as well as animals. In this study, the effects of heat stress on some reproductive parameters of male cavies and mitigation strategies using guava leaves essential oil (GLEO) were studied. For this purpose, 40 male cavies aged 2.5-3 months and weighing between 348 and 446g were divided into 4 groups of 10 animals each and subjected to the following temperatures: Ambient temperature (20-25°C) for the control group, 35°C for group 1, 45°C for group 2 and 45°C+100µl GLEO/kg body weight, administered by gavage to animals for group 3...
February 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28163192/sperm-ultrastructure-of-shrimp-from-family-penaeidae-crustacea-dendrobranchiata-in-a-phylogenetic-context
#4
Tavani Rocha Camargo, Natalia Rossi, Antonio L Castilho, Rogério C Costa, Fernando L Mantelatto, Fernando José Zara
We describe the sperm ultrastructure of six Penaeidae species, including at least one member of each tribe (Penaeini, Parapenaeini and Trachypenaeini). Fragments of the vas deferens of the Penaeidae Farfantepenaeus brasiliensis, F. paulensis, Litopenaeus schmitti, Parapenaeus americanus, Rimapenaeus constrictus and Xiphopenaeus kroyeri were fixed and processed according to the routine for transmission electron microscopy. The morphological results were contextualized in an evolutionary perspective using molecular markers for the phylogenetic reconstruction of this group...
February 2, 2017: Arthropod Structure & Development
https://www.readbyqxmd.com/read/28161359/is-there-a-role-for-serratia-marcescens-in-male-infertility-an-experimental-study
#5
Kalpana Rana, Deepali Thaper, Vijay Prabha
OBJECTIVE: Establishment of a male BALB/c mouse model to study the role of sperm impairing S. marcescens on mouse reproductive potential. The current study can add to use of reliable animal models to provide a noteworthy evidence for the microbial cause of infertility. METHODS: The mice in the test groups II, III, IV were intraperitoneally administered with different doses (10(4), 10(6) or 10(8) cfu) of S. marcescens whereas, group I serving as control, received PBS, for 10 consecutive days...
February 1, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28127497/descent-of-mesonephric-duct-to-the-final-position-of-the-vas-deferens-in-human-embryo-and-fetus
#6
Zhe Wu Jin, Hiroshi Abe, Nobuyuki Hinata, Xiang Wu Li, Gen Murakami, José Francisco Rodríguez-Vázquez
Because the ureter arises from the mesonephric or Wolffian duct (WD), the WD opening should migrate inferiorly along the urogenital sinus or future urethra. However, this process of descent has not been evaluated morphometrically in previous studies and we know little about intermediate morphologies for the descent. In the present work, serial sagittal sections of 15 specimens at gestational age 6-12 weeks and serial horizontal sections of 20 specimens at 6-10 weeks were analyzed. Monitoring of horizontal sections showed that, until 9 weeks, a heart-, lozenge- or oval-shape of the initial urogenital sinus remained in the bladder and urethra...
December 2016: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/28123059/overactivation-of-hedgehog-signaling-interferes-with-regression-of-the-m%C3%A3-llerian-duct
#7
Fernando F Migone, Pei-Hsuan Hung, Robert G Cowan, Vimal Selvaraj, Susan Suarez, Susan M Quirk
The influence of the hedgehog signaling pathway on reproduction was studied in transgenic mice in which a dominant active allele of the hedgehog signal transducer, smoothened (SMOM2), was conditionally expressed in the developing Müllerian duct and gonads through recombination mediated by anti-Müllerian hormone receptor 2-cre (Amhr2cre). Previous studies showed that development of the oviduct and uterus are abnormal in female Amhr2cre/+SmoM2 mice. In the current study, focusing on mutant males, litter size was reduced 53% in crosses with wild-type females...
January 25, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28103441/enantio-specific-allosteric-modulation-of-cannabinoid-1-receptor
#8
Robert B Laprairie, Pushkar M Kulkarni, Jeffrey R Deschamps, Melanie E M Kelly, David R Janero, Maria G Cascio, Lesley A Stevenson, Roger G Pertwee, Terry Kenakin, Eileen M Denovan-Wright, Ganesh A Thakur
The cannabinoid 1 receptor (CB1R) is one of the most widely expressed metabotropic G protein-coupled receptors in brain, and its participation in various (patho)physiological processes has made CB1R activation a viable therapeutic modality. Adverse psychotropic effects limit the clinical utility of CB1R orthosteric agonists and have promoted the search for CB1R positive allosteric modulators (PAMs) with the promise of improved drug-like pharmacology and enhanced safety over typical CB1R agonists. In this study, we describe the synthesis and in vitro and ex vivo pharmacology of the novel allosteric CB1R modulator GAT211 (racemic) and its resolved enantiomers, GAT228 (R) and GAT229 (S)...
January 19, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28086774/androgenic-effects-of-aqueous-and-methanolic-extracts-of-ficus-asperifolia-in-male-wistar-rats
#9
Pierre Watcho, Hermine Meli Watio, Modeste Wankeu-Nya, Esther Ngadjui, Patrick Deeh Defo, Pepin Alango Nkeng-Efouet, Telesphore Benoit Nguelefack, Albert Kamanyi
BACKGROUND: Androgen deficiency is a clinical syndrome resulting from the inability of the testes to produce physiological levels of testosterone due to a disturbance occurring at one or more levels of the hypothalamic-pituitary-testicular axis. The present study was undertaken to evaluate the androgenic properties of aqueous and methanolic extracts of Ficus asperifolia on normal and castrated immature rats. METHODS: Normal rats were treated either per os with aqueous or methanolic extract of Ficus asperifolia (100 mg/kg or 500 mg/kg b...
January 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28078523/simple-vs-six-branches-autologous-suburethral-sling-during-robot-assisted-radical-prostatectomy-to-improve-early-urinary-continence-recovery-prospective-randomized-study
#10
Andrea Cestari, Matteo Ferrari, Mattia Sangalli, Matteo Zanoni, Massimo Ghezzi, Fabio Fabbri, Francesco Sozzi, Carolina Lolli, Vincenzo Dell'Acqua, Patrizio Rigatti
We have recently described the use of a retropubic suburethral autologous sling created and placed during robotic radical prostatectomy (RARP). In this study, we assess the effectiveness of newly designed six-branches compared to two-branches suburethral autologous sling in improving early urinary continence (UC) recovery. 120 patients submitted to RARP were prospectively randomized according to the intraoperative positioning of six-branches (group 1, n = 60) or two-branches autologous sling (group 2, n = 60) obtained by different configuration of a same tract of vas deferens removed...
January 11, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28067674/a-pathology-of-mesh-and-time-dysejaculation-sexual-pain-and-orchialgia-resulting-from-polypropylene-mesh-erosion-into-the-spermatic-cord
#11
Vladimir Iakovlev, Andreas Koch, Kevin Petersen, John Morrison, David Grischkan, Vali Oprea, Robert Bendavid
OBJECTIVE: The ubiquitous use of polypropylene mesh in hernia surgery has spawned a new clinical syndrome: chronic post-herniorrhaphy neuralgia. A subset of that clinical picture is dysejaculation, sexual pain, and orchialgia. We propose to identify the processes that lead to that pain. SUMMARY OF BACKGROUND DATA: Specimens of vas adherent to polypropylene mesh, explanted in an attempt to control severe, life-changing inguinodynia are extremely difficult to obtain...
January 6, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28042420/screening-of-two-neighboring-cftr-mutations-in-iranian-infertile-men-with-non-obstructive-azoospermia
#12
Somayeh Heidari, Zohreh Hojati, Majid Motovali-Bashi
The genetic association between cystic fibrosis transmembrane conductance regulator (CFTR) gene mutations and male infertility due to congenital bilateral absence of vas deferens (CBAVD) is well established. Mutant CFTR, however may also be involved in the etiology of male infertility in non-CBAVD cases. The present study was conducted to estimate the frequency of ∆I507 and ∆F508 CFTR gene mutations in Iranian infertile males. We undertook the first study of association between these CFTR mutations and non-obstructive azoospermia in Iran...
January 2017: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/28029195/expression-of-tamoxifen-inducible-cre-recombinase-in-lcn5-creer-t2-transgenic-mouse-caput-epididymis
#13
Juan Xu, Guangxin Yao, Yanfei Ru, Shengsong Xie
The epididymis, which connects the testis to vas deferens, plays a crucial role regulating sperm maturation and fertilization. Here, a tamoxifen-inducible CreER(T2) recombinase transgenic mouse was generated to study the function of genes in the caput epididymis using the Cre/LoxP system, which is driven by the 1.8-kb Lcn5 promoter (Lcn5-CreER(T2) ). Both CRE recombinase and ER(T2) mRNA were specifically expressed in the caput epididymis, beginning at postnatal Day 30 and increasing thereafter. Crossing these Lcn5-CreER(T2) transgenic mice with Rosa26;mT/mG reporter mice, which express membrane-bound GFP (mGFP) only after CRE is active at its genetic locus, resulted in the presence of GFP only in the middle/distal caput epididymis after tamoxifen induction...
December 28, 2016: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/27999544/mitragyna-speciosa-leaf-extract-exhibits-antipsychotic-like-effect-with-the-potential-to-alleviate-positive-and-negative-symptoms-of-psychosis-in-mice
#14
Kamini Vijeepallam, Vijayapandi Pandy, Thubasni Kunasegaran, Dharmani D Murugan, Murali Naidu
In this study, we investigated the antipsychotic-like effect of methanolic extract of Mitragyna speciosa leaf (MMS) using in vivo and ex vivo studies. In vivo studies comprised of apomorphine-induced climbing behavior, haloperidol-induced catalepsy, and ketamine-induced social withdrawal tests in mice whereas the ex vivo study was conducted utilizing isolated rat vas deferens preparation. Acute oral administration of MMS (50-500 mg/kg) showed an inverted bell-shaped dose-response in apomorphine-induced cage climbing behavior in mice...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27996019/intragenic-cftr-duplication-and-5t-12tg-variant-in-a-patient-with-non-classic-cystic-fibrosis
#15
Patricia B S Celestino-Soper, Edward Simpson, Danika Tumbleson Brink, Ty C Lynnes, Stephen Dlouhy, Matteo Vatta, Jana Yeley, Cynthia Brown, Shaochun Bai
Cystic fibrosis (CF) is an autosomal recessive disorder characterized by the accumulation of sticky and heavy mucus that can damage several organs. CF shows variable expressivity in affected individuals, but it typically causes respiratory and digestive complications as well as congenital bilateral absence of the vas deferens in males. Individuals with classic CF usually have variants that produce a defective protein from both alleles of the CFTR gene. Individuals with other variants may present with classic, non-classic, or milder forms of CF due to lower levels of functional CFTR protein...
December 20, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27995220/standardized-4-step-technique-of-bladder-neck-dissection-during-robot-assisted-radical-prostatectomy
#16
REVIEW
Mansour Alnazari, Marc Zanaty, Emad Rajih, Assaad El-Hakim, Kevin C Zorn
Bladder neck (BN) dissection is considered one of the most challenging steps during robot-assisted radical prostatectomy. Better understanding of the BN anatomy, coupled with a standardized approach may facilitate dissection while minimizing complications. We describe in this article the 4 anatomic spaces during standardized BN dissection, as well other technical maneuvers of managing difficult scenarios including treatment of a large median lobe or patients with previous transurethral resection of the prostate...
December 2016: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/27898354/vasitis-mimicking-an-amyand-s-hernia-a-case-report
#17
Juan Manuel Romero Marcos, Santiago Baena Bradaschia, José María Muñoz Pérez, José Andrés Cifuentes Ródenas
INTRODUCTION: Amyand's hernia is an inguinal hernia containing the caecal appendix. It is usually an intraoperative finding, although it can be diagnosed preoperatively with radiologic examinations, which would show a tubular structure inside the inguinal canal. PRESENTATION OF CASE: A male patient presented to the emergency department complaining of abdominal pain in the right lower quadrant. He had been orchidectomized during his childhood due to cryptorchidism, and had been under antibiotic treatment a week before due to a suspected gonorrhoea...
November 22, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27888149/testicular-spermatozoa-are-of-better-quality-than-epididymal-spermatozoa-in-patients-with-obstructive-azoospermia
#18
Ibrahim Hammoud, Marc Bailly, Marianne Bergere, Robert Wainer, Vincent Izard, François Vialard, Jacqueline Selva, Florence Boitrelle
OBJECTIVE: To assess sperm quality as a function of the sampling site (testis or epididymis) in obstructive azoospermia (OA). MATERIALS AND METHODS: DNA fragmentation rates in spermatozoa sampled from the testis and epididymis (from patients with different etiologies of OA) were assessed in a dUTP nick-end labeling assay RESULTS: Twenty-one OA patients were included: 5 had congenital bilateral absence of the vas deferens, 8 had genital tract infections, and 8 had idiopathic OA...
November 22, 2016: Urology
https://www.readbyqxmd.com/read/27887927/effects-of-in-vitro-acute-and-chronic-treatment-with-fluoxetine-on-the-sympathetic-neurotransmission-of-rat-vas-deferens
#19
Shaista Poppe Pedroso, Bruno Palmieri de Souza, Aron Jurkiewicz, Neide H Juriewicz, Edilson Dantas da Silva Junior
It is described that fluoxetine treatment is able to induce ejaculatory disorders. However, the exact mechanism is still not fully understood. Therefore, this study was carried out to further evaluate the anti-ejaculatory effects of fluoxetine, using different approaches (in vitro or in vivo treatments), on the sympathetic neurotransmission of the rat vas deferens. Vas deferens from male Wistar rats were used to check the in vitro effects of fluoxetine 10(-6)M, 3.10(-6)M or 10(-5)M. Animals were also acutely (20mg/kg, i...
November 20, 2016: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/27860356/micro-endoscopy-of-the-human-vas-deferens-a-feasibility-study-of-a-novel-device-in-several-ex-vivo-models
#20
M Trottmann, R Sroka, C Braun, B Liedl, H Schaaf, M Graw, A J Becker, C G Stief, W Y Khoder
The aim of this study was to show limitation as well as potential of micro-endoscopy techniques as an innovative diagnostic and therapeutic approach in andrology. Two kinds of custom-made micro-endoscopes (ME) were tested in ex vivo vas deferens specimen and in post-mortem whole body. The semi-rigid ME included a micro-optic (0.9 mm outer diameter [OD], 10.000 pixels, 120° vision angle [VE], 3-20 mm field depth [FD]) and an integrated fibre-optic light source. The flexible ME was composed of a micro-optic (OD = 0...
January 2017: Andrology
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