Anterior extraperitoneal approach to the lumbar sympathetic nerves

1935 ◽  
Vol 29 (1) ◽  
pp. 23-25 ◽  
Author(s):  
P.G. Flothow
Keyword(s):  
Sympathetic Nerves ◽  
Extraperitoneal Approach

Human Neurofibromas in Co-Culture with Mouse Neurons

1982 ◽  
Vol 40 ◽  
pp. 194-195
Author(s):  
R.L. Martuza ◽  
T. Liszczak ◽  
A. Okun ◽  
T-Y Wang
Keyword(s):  
Schwann Cell ◽  
Schwann Cells ◽  
Genetic Disorder ◽  
Cranial Nerves ◽  
Sympathetic Nerves ◽  
Acoustic Neuromas ◽  
Spinal Roots ◽  
Neural Crest Origin ◽  
Multiple Abnormalities ◽  
Other Neoplasms

Neurofibromatosis (NF) is an autosomal dominant genetic disorder with a prevalence of 1/3,000 births. The NF mutation causes multiple abnormalities of various cells of neural crest origin. Schwann cell tumors (neurofibromas, acoustic neuromas) are the most common feature of neurofibromatosis although meningiomas, gliomas, and other neoplasms may be seen. The schwann cell tumors commonly develop from the schwann cells associated with sensory or sympathetic nerves or their ganglia. Schwann cell tumors on ventral spinal roots or motor cranial nerves are much less common. Since the sensory neuron membrane is known to contain a mitogenic factor for schwann cells, we have postulated that neurofibromatosis may be due to an abnormal interaction between the nerve and the schwann cell and that this interaction may be hormonally modulated. To test this possibility a system has been developed in which an enriched schwannoma cell culture can be obtained and co-cultured with pure neurons.

Intraportal transplantation of pancreatic islets into livers of diabetic rats. Reinnervation of islets and regulation of insulin secretion by the hepatic sympathetic nerves

Diabetes ◽  
1994 ◽  
Vol 43 (11) ◽  
pp. 1345-1352 ◽  
Author(s):  
A. Gardemann ◽  
K. Jungermann ◽  
V. Grosse ◽  
L. Cossel ◽  
F. Wohlrab ◽  
...  
Keyword(s):  
Insulin Secretion ◽  
Pancreatic Islets ◽  
Sympathetic Nerves ◽  
Diabetic Rats

Effects of Aging on the Responsiveness of the Human Cardiac Sympathetic Nerves to Stressors

Circulation ◽  
1995 ◽  
Vol 91 (2) ◽  
pp. 351-358 ◽  
Author(s):  
Murray D. Esler ◽  
Jane M. Thompson ◽  
David M. Kaye ◽  
Andrea G. Turner ◽  
Garry L. Jennings ◽  
...  
Keyword(s):  
Sympathetic Nerves ◽  
Effects Of Aging

Evidence that interferon-γ alters pineal metabolism both indirectly via sympathetic nerves and directly on the pinealocytes

1991 ◽  
Vol 23 (12) ◽  
pp. 1397-1401 ◽  
Author(s):  
Boonsirm Withyachumnarnkul ◽  
Russel J. Reiter ◽  
Alexander Lerchl ◽  
Keico O. Nonaka ◽  
Karl-Arne Stokkan
Keyword(s):  
Sympathetic Nerves ◽  
Interferon Γ

scholarly journals Kisspeptin level in the aging ovary is regulated by the sympathetic nervous system

2017 ◽  
Vol 232 (1) ◽  
pp. 97-105 ◽  
Author(s):  
Daniela Fernandois ◽  
Gonzalo Cruz ◽  
Eun Kyung Na ◽  
Hernán E Lara ◽  
Alfonso H Paredes
Keyword(s):  
Adrenergic Receptor ◽  
Follicular Development ◽  
Sympathetic Nerves ◽  
Female Rats ◽  
Reproductive Aging ◽  
Beta Adrenergic Receptor ◽  
Beta Adrenergic ◽  
Primordial Follicles ◽  
Follicular Cyst

Previous work has demonstrated that the increase in the activity of sympathetic nerves, which occurs during the subfertility period in female rats, causes an increase in follicular cyst development and impairs follicular development. In addition, the increase in ovarian sympathetic activity of aged rats correlates with an increased expression of kisspeptin (KISS1) in the ovary. This increase in KISS1 could participate in the decrease in follicular development that occurs during the subfertility period. We aimed to determine whether the blockade of ovarian sympathetic tone prevents the increase in KISS1 expression during reproductive aging and improves follicular development. We performed 2 experiments in rats: (1) an in vivo blockade of beta-adrenergic receptor with propranolol (5.0 mg/kg) and (2) an ovarian surgical denervation to modulate the sympathetic system at these ages. We measured Kisspeptin and follicle-stimulating hormone receptor (FSHR) mRNA and protein levels by qRT-PCR and western blot and counted primordial, primary and secondary follicles at 8, 10 and 12 months of age. The results showed that ovarian KISS1 decreased but FSHR increased after both propranolol administration and the surgical denervation in rats of 8, 10 and 12 months of age. An increase in FSHR was related to an increase in the number of smaller secondary follicles and a decreased number of primordial follicles at 8, 10 and 12 months of age. These results suggest that intraovarian KISS1 is regulated by sympathetic nerves via a beta-adrenergic receptor and participates locally in ovarian follicular development in reproductive aging.

scholarly journals A totally extraperitoneal approach for endoscopic resection of a congenital prepubic sinus through the pubic symphysis

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Masahiro Fukuhara ◽  
Shun Onishi ◽  
Yusuke Yonemura ◽  
Tomoe Sato ◽  
Satoshi Tsutsumi ◽  
...  
Keyword(s):  
Endoscopic Resection ◽  
Intraoperative Complications ◽  
Pubic Symphysis ◽  
Complete Resection ◽  
Rectus Abdominis ◽  
The Body ◽  
Preperitoneal Space ◽  
Extraperitoneal Approach ◽  
Totally Extraperitoneal ◽  
Good Visibility

Abstract Background A congenital prepubic sinus (CPS) is a rare congenital anomaly in which a duct remnant extends from the skin opening near the pubic symphysis to various parts and the lesions are mostly located in the preperitoneal space. The totally extraperitoneal (TEP) approach is an operational method that provides a good field of view for the preperitoneal space. We report the CPS through the pubic symphysis in which complete resection was achieved by a TEP approach. TEP approach was minimally invasive and achieved satisfactory cosmetic outcome. Case presentation We herein report the case of a 13-year-old boy with a fistula opening near the dorsal penis. He was admitted to our hospital due to fever and lower abdominal pain. Abdominal ultrasonography and computed tomography revealed an abscess inside a fistula lumen on the posterior surface of the rectus abdominis muscles in the midline of the lower abdomen. Under a diagnosis of CPS, which was located in the preperitoneal space, endoscopic resection was performed by a totally extraperitoneal approach. After making an umbilical incision, the rectus abdominis muscle was excised outward to expose the preperitoneal space. A single-port system was placed in the preperitoneal space. Three 5-mm-port trocars were inserted. As the preperitoneal cavity was expanded, a sinus connecting to the pubic symphysis was confirmed. The pubic symphysis did not connect with the bladder. Because the fistula was penetrated with the pubic symphysis, the remaining caudal fistula was removed from the body surface with a small spindle-shaped incision around the fistula opening. Finally, the sinus was completely resected, with confirmation from both the cranial side and dorsal side of the pubic symphysis. We were able to perform complete resection of the CPS with good visibility and without any peritoneal damage. There were no intraoperative complications. His postoperative course was uneventful during the 1-year follow-up. Conclusions The TEP approach may be feasible for the resection of a CPS and may allow safe and secure resection due to good visibility, even in pediatric patients.

scholarly journals Ectopic atrial arrhythmias arising from canine thoracic veins during in vivo stellate ganglia stimulation

2008 ◽  
Vol 295 (2) ◽  
pp. H691-H698 ◽  
Author(s):  
Alex Y. Tan ◽  
Shengmei Zhou ◽  
Byung Chun Jung ◽  
Masahiro Ogawa ◽  
Lan S. Chen ◽  
...  
Keyword(s):  
Pulmonary Vein ◽  
Sinus Node ◽  
Periodic Acid ◽  
Sympathetic Innervation ◽  
Sympathetic Nerves ◽  
Atrial Arrhythmias ◽  
Periodic Acid Schiff ◽  
Stellate Ganglia ◽  
Ectopic Beats

The purpose of the present study was to determine whether thoracic veins may act as ectopic pacemakers and whether nodelike cells and rich sympathetic innervation are present at the ectopic sites. We used a 1,792-electrode mapping system with 1-mm resolution to map ectopic atrial arrhythmias in eight normal dogs during in vivo right and left stellate ganglia (SG) stimulation before and after sinus node crushing. SG stimulation triggered significant elevations of transcardiac norepinephrine levels, sinus tachycardia in all dogs, and atrial tachycardia in two of eight dogs. Sinus node crushing resulted in a slow junctional rhythm (51 ± 6 beats/min). Subsequent SG stimulation induced 20 episodes of ectopic beats in seven dogs and seven episodes of pulmonary vein tachycardia in three dogs (cycle length 273 ± 35 ms, duration 16 ± 4 s). The ectopic beats arose from the pulmonary vein ( n = 11), right atrium ( n = 5), left atrium ( n = 2), and the vein of Marshall ( n = 2). There was no difference in arrhythmogenic effects of left vs. right SG stimulation (13/29 vs. 16/29 episodes, P = nonsignificant). There was a greater density of periodic acid Schiff-positive cells ( P < 0.05) and sympathetic nerves ( P < 0.05) at the ectopic sites compared with other nonectopic atrial sites. We conclude that, in the absence of a sinus node, thoracic veins may function as subsidiary pacemakers under heightened sympathetic tone, becoming the dominant sites of initiation of focal atrial arrhythmias that arise from sites with abundant sympathetic nerves and periodic acid Schiff-positive cells.

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