Re: Sensory innervation of the human male prepuce—Meissner’s corpuscles predominate

2021 ◽  
Author(s):  
Guy Cox ◽  
Brian J. Morris
Keyword(s):  
Sensory Innervation ◽  
Human Male

Autonomic Regulation of Penile Erection

2019 ◽  
Author(s):  
K-E Andersson
Keyword(s):  
Penile Erection ◽  
Tunica Albuginea ◽  
Smooth Muscles ◽  
Sensory Innervation ◽  
Autonomic Nerves ◽  
Penile Skin ◽  
Erectile Tissue ◽  
Human Male ◽  
Trabecular Network ◽  
Dorsal Nerves

Penile erection is a part of the human male sexual response, involving desire, excitation (erection), orgasm (ejaculation), and resolution, and autonomic nerves are involved in all phases. Autonomic innervation of smooth-muscle cells of the erectile tissue is provided by the cavernous nerve. Motor and sensory innervation is derived from the pudendal nerves and their terminal branches, that is, the dorsal nerves of the penis, which carry impulses from receptors harbored in the penile skin, prepuce, and glans. Erection begins with an increased flow in the pudendal arteries and dilatation of the cavernous arteries and helicine arterioles in association with relaxation of the smooth muscles of the trabecular network, causing engorgement of blood in the corpora. This leads to compression of subtunical venules by the resistant tunica albuginea and erection. During detumescence these events are reversed.

scholarly journals Sensory innervation of the human male prepuce: Meissner's corpuscles predominate

2021 ◽  
Author(s):  
Yolanda García‐Mesa ◽  
Jorge García‐Piqueras ◽  
Ramón Cobo ◽  
José Martín‐Cruces ◽  
Iván Suazo ◽  
...  
Keyword(s):  
Sensory Innervation ◽  
Human Male

High-voltage EM description of the types and distribution of sensory endings in the inner conical body of the rat vibrissal follicle-sinus complex

1990 ◽  
Vol 48 (3) ◽  
pp. 410-411
Author(s):  
Tony M. Mosconi ◽  
Min J. Song ◽  
Frank L. Rice
Keyword(s):  
Mammalian Species ◽  
Dorsal Side ◽  
Hair Shaft ◽  
Sensory Innervation ◽  
Conical Body ◽  
Adult Rats ◽  
Perpendicular Plane ◽  
Ultrastructural Studies ◽  
Unmyelinated Axons ◽  
Sensory Endings

Whiskers or vibrissal follicle-sinus complexes (F-SCs) on the snouts of many mammalian species are structures that have complex, dense sensory innervation. The innervation of F-SCs is remarkably similar in all species with the exception of one site - the inner conical body (ICB). The ICB is an elongated cylindrical structure that encircles the hair shaft near the neck of the follicle. This site has received only cursory attention in ultrastructural studies of the F-SCAdult rats were perfused after the method of Renehan and Munger2. F-SCs were quartered longitudinally and embedded separately in Epon-Araldite. Serial 0.25 μm sections were cut in either the longitudinal or perpendicular plane through the ICB and examined with an AEI EM7 1.2 MV HVEM (Albany, NY) at 1000 KV. Sensory endings were reconstructed from serial micrographs through at least 20 μm in the longitudinal plane and through 10 μm in the perpendicular plane.From two to six small superficial vibrissal nerves converge upon the neck of the F-SC and descend into the ICB. The nerves branch into smaller bundles of myelinated and unmyelinated axons along the dorsal side of the hair shaft.

THE INFLUENCE OF SERUM ON THE UPTAKE, CONVERSION AND ACTION OF DIHYDROTESTOSTERONE IN RAT PROSTATE GLANDS IN ORGAN CULTURE

1975 ◽  
Vol 64 (2) ◽  
pp. 289-297 ◽  
Author(s):  
ILSE LASNITZKI ◽  
HILARY R. FRANKLIN
Keyword(s):  
Organ Culture ◽  
Horse Serum ◽  
Target Tissue ◽  
Serum Free Medium ◽  
Free Medium ◽  
Serum Free ◽  
Human Pregnancy ◽  
Human Male ◽  
Columnar Cells

SUMMARY The influence of serum on the uptake, conversion and action of dihydrotestosterone in relation to the sex steroid binding protein, TeBG, has been investigated in rat ventral prostates in organ culture. The organs were incubated with [1,2-3H]dihydrotestosterone in: (1) serum-free medium, (2) horse serum, foetal and newborn bovine serum or (3) human male and human pregnancy serum. With all sera the uptake of dihydrotestosterone fell with rising serum concentration, at first steeply and then more gradually. At the same concentration, the uptake was significantly lower in explants incubated with human pregnancy serum than in those kept with human male serum. The conversion of dihydrotestosterone to androstanediol followed the same pattern and less androstanediol was formed in the presence of pregnancy serum. Since pregnancy serum contains higher amounts of TeBG than male serum, the lowered uptake suggests that only the free hormone was available to the target organ. Addition of unlabelled dihydrotestosterone resulted in a higher uptake than that measured in explants incubated with the labelled steroid only. The effect of the human sera on uptake and conversion was correlated with the androgenic activity of dihydrotestosterone applied at physiological concentrations and expressed as the percentage of secretory columnar cells present. The degree of maintenance closely corresponded to the uptake of the hormone. In serum-free medium, the number of columnar cells approached the values found in vivo, with male serum their number, though reduced, was still substantial, with pregnancy serum it was extremely low. It is concluded that the amounts of TeBG present in serum regulate the supply of the hormone to the target tissue and thus control its biological action.

120 Genicular Nerve Radio-Frequency Ablation in The Treatment of Anterior Knee Pain in Patients with Osteoarthritis of The Knee Joint: Systematic Review

2021 ◽  
Vol 108 (Supplement_2) ◽  
Author(s):  
M Farrugia ◽  
C Tinning
Keyword(s):  
Knee Pain ◽  
Anterior Knee Pain ◽  
Comparative Studies ◽  
Primary Outcome ◽  
Final Analysis ◽  
Primary Outcome Measure ◽  
Sensory Innervation ◽  
Osteoarthritis Of The Knee ◽  
Pain Scores ◽  
Anterior Knee

Abstract Anterior knee pain is one of the main symptoms in osteoarthritis, resulting from the rich sensory innervation of its capsule. Pain control can be difficult to achieve, with non-responders to conservative and medical therapy often requiring a total knee replacement. Radiofrequency ablation (RFA) is a novel technique that could be beneficial in managing anterior knee pain by targeting the genicular nerves around the knee; however, its routine use is not included in current guidelines. A literature search identified fifty-two results, which underwent screening using a study protocol and the final literature sources, of varying levels of evidence, underwent critical appraisal and analysis. The primary outcome included the significant improvement of pain scores from baseline, against their respective control treatments. The ten studies included in the final analysis consisted of seven comparative studies and three non-comparative studies. Literature showed significant improvement in their mean pain scores, all meeting the primary outcome measure. Most studies also showed significant improvement from the control treatments used. Current literature shows evidence that genicular nerve RFA is an effective and safe treatment modality in the management of anterior knee pain secondary to osteoarthritis. However, the literature available is limited and further comparative studies are required.

Bilateral mandibular block improves pain relief and morphine consumption in mandibular osteotomies: a prospective, randomized, double-blind, placebo-controlled clinical trial

2021 ◽  
Vol 46 (4) ◽  
pp. 322-327
Author(s):  
Marina Bertuit ◽  
Francesca Rapido ◽  
Habib Ly ◽  
Charlotte Vannucci ◽  
Jérôme Ridolfo ◽  
...  
Keyword(s):  
Postoperative Analgesia ◽  
Severe Pain ◽  
Postoperative Nausea And Vomiting ◽  
Sensory Innervation ◽  
Morphine Consumption ◽  
Controlled Study ◽  
Controlled Clinical Trial ◽  
Block Group ◽  
Double Blind ◽  
Double Blind Placebo

BackgroundThe sensory innervation of the lower jaw mainly depends on the third root of the trigeminal nerve, the mandibular nerve (V3). The aim of this single-center, prospective, randomized, double-blind, placebo-controlled study was to evaluate the effectiveness of bilateral V3 block for postoperative analgesia management in mandibular osteotomies.Methods107 patients undergoing mandibular surgery (75 scheduled osteotomies and 32 mandible fractures) were randomized in two groups. A bilateral V3 block was performed in each group, either with ropivacaine 0.75% (block group, n=50) or with a placebo (placebo group, n=57). A postoperative multimodal analgesia was equally provided to both groups. The primary outcome was the cumulative morphine consumption at 24 hours. Secondary outcomes were the occurrence of severe pain and the incidence of postoperative nausea and vomiting (PONV) in the first 24 hours. Data were analyzed on an intention-to-treat basis.ResultsThe cumulative morphine consumption at 24 hours was significantly lower in the block group (median 8.0 mg (IQR 2.0–21.3) vs 12.0 mg (IQR 8.0–22.0), p=0.03), as well as the incidence of severe pain during the 24 hours of follow-up (4.0% vs 22.8%, p<0.01). The mandibular block had no impact on the incidence of PONV.ConclusionBilateral V3 block for mandibular osteotomies is an effective opioid-sparing procedure. It provided better postoperative analgesia in the first 24 hours, and it did not affect PONV incidence.Trial registration numberNCT02618993.

Submitted as Original Article to “Journal of Biomechanics”Prediction of Human Male Trunk Mass Distribution Using Anthropometric Measurements: A Feasibility Study

2021 ◽  
pp. 110437
Author(s):  
Tao Liu ◽  
Kinda Khalaf ◽  
Nader Hebela ◽  
Lindsey Westover ◽  
Fabio Galbusera ◽  
...  
Keyword(s):  
Mass Distribution ◽  
Feasibility Study ◽  
Anthropometric Measurements ◽  
Human Male

scholarly journals Establishing Human Male and Female Models of Cholinergic Neurons via Neurokine-Mediated Differentiation of LA-N-2 and LA-N-5 Neuroblastoma Cells

2020 ◽  
Vol 1 (3) ◽  
pp. 100193
Author(s):  
Sebastian Lobentanzer ◽  
Jochen Klein ◽  
Hermona Soreq
Keyword(s):  
Neuroblastoma Cells ◽  
Cholinergic Neurons ◽  
Male And Female ◽  
Human Male

scholarly journals Metabolic fate of radiolabeled prostaglandin D2 in a normal human male volunteer.

1985 ◽  
Vol 260 (24) ◽  
pp. 13172-13180 ◽  
Author(s):  
T E Liston ◽  
L J Roberts
Keyword(s):  
Male Volunteer ◽  
Prostaglandin D2 ◽  
Metabolic Fate ◽  
Human Male ◽  
Normal Human
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