171,741 results match your criteria Pituitary [Journal]


Intraoperative near-infrared imaging with receptor-specific versus passive delivery of fluorescent agents in pituitary adenomas.

Authors:

J Neurosurg 2018 Dec 14:1-11. Epub 2018 Dec 14.

OBJECTIVEIntraoperative molecular imaging with tumor-targeted fluorescent dyes can enhance resection rates. In contrast to visible-light fluorophores (e.g. Read More

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December 2018

Effects of pregnancy experience on ovarian senescence and longevity in Hatano rats bred for high- and low-avoidance learning.

Exp Gerontol 2018 Dec 13. Epub 2018 Dec 13.

Hatano Research Institute, Food and Drug Safety Center, 729-5 Ochiai, Hadano, Kanagawa 257-8523, Japan.

We investigated the effects of pregnancy experience on ovarian senescence and longevity using two inbred strains of Hatano rats. These strains have been selectively bred for high- and low-avoidance animals (HAA and LAA, respectively), but the HAA line has a slower onset of ovarian senescence and a shorter lifespan compared with the LAA line. The onset of abnormal estrous cycles and survival curves were compared between nulliparous and parous rats in each line. Read More

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December 2018

Radiations and female fertility.

Reprod Biol Endocrinol 2018 Dec 16;16(1):112. Epub 2018 Dec 16.

Department of Medical and Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Faculty of Medicine and Psychology, University of Rome "Sapienza", Rome, Italy.

Hundreds of thousands of young women are diagnosed with cancer each year, and due to recent advances in screening programs, diagnostic methods and treatment options, survival rates have significantly improved. Radiation therapy plays an important role in cancer treatment and in some cases it constitutes the first therapy proposed to the patient. However, ionizing radiations have a gonadotoxic action with long-term effects that include ovarian insufficiency, pubertal arrest and subsequent infertility. Read More

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December 2018

Developmental toxicity of kresoxim-methyl during zebrafish (Danio rerio) larval development.

Chemosphere 2018 Dec 8;219:517-525. Epub 2018 Dec 8.

Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Hangzhou, 310021, Zhejiang, China. Electronic address:

Kresoxim-methyl (KM) is a broad spectrum strobilurin fungicide that has been used widely on crops around the world. In the present study, we aimed to investigate the toxic effects of KM using various sublethal endpoints during zebrafish (Danio rerio) larval development. Results showed that the LC values of KM to zebrafish at multiple life stages (embryo, larvae, juvenile and adult) were 0. Read More

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December 2018
1 Read

Neuroprotective effects of 1`δ-1`-acetoxyeugenol acetate on Aβ induced cognitive dysfunction in mice.

Biomed Pharmacother 2019 Jan 13;109:1454-1461. Epub 2018 Nov 13.

Department of Pharmacology, University College of Pharmaceutical Sciences, Kakatiya University, Warangal, Telangana, 506009, India. Electronic address:

The progressive accumulation of amyloid beta (Aβ) peptide is neurotoxic and leads to Alzheimer's type dementia. Accumulation of Aβ has been associated with dysfunction of hypothalamic-pituitary-adrenal (HPA) axis and elevated pro-inflammatory cytokines. In this study, we investigated the effect of 1`δ-1`-acetoxyeugenol acetate (DAEA), isolated from Alpinia galanga (L. Read More

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January 2019

Two Extraordinary Sellar Neuronal Tumors: Literature Review and Comparison of Clinicopathologic Features.

Am J Clin Pathol 2018 Dec 14. Epub 2018 Dec 14.

Department of Pathology, Duke University Medical Center, Durham, NC.

Objectives: The list of tumors involving the pituitary gland has been expanded to include a variety of neuronal and paraneuronal tumors in the 2017 World Health Organization tumor classification of endocrine organs. All the entities included in this category are distinctly rare, with limited case reports in the literature.

Methods: We illustrate two extraordinary sellar tumors with neuronal differentiation: a sellar paraganglioma and a sellar neurocytoma, with thorough literature review and comparison of the clinicopathologic features of these entities. Read More

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December 2018

Chronic Adolescent Stress Sex-Specifically Alters Central and Peripheral Neuro-Immune Reactivity in Rats.

Brain Behav Immun 2018 Dec 11. Epub 2018 Dec 11.

Virginia Commonwealth University, Department of Anatomy & Neurobiology, United States. Electronic address:

Adversity during development is a reliable predictor of psychiatric disorders such as depression and anxiety which are increasingly recognized to have an immune component. We have previously demonstrated that chronic adolescent stress (CAS) in rats leads to depressive-like behavior in adulthood along with long-lasting changes to the hypothalamic-pituitary-adrenal axis and pro-inflammatory cytokine induction in the hippocampus. However, the mechanisms by which CAS promotes hippocampal inflammation are not yet defined. Read More

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December 2018

Hypogonadotropic hypogonadism and pituitary hypoplasia as recurrent features in Ulnar-Mammary syndrome.

Endocr Connect 2018 Dec;7(12):1432-1441

IRCCS Istituto Auxologico Italiano, Service of Medical Genetics, Milan, Italy.

Ulnar-mammary syndrome (UMS) is characterized by ulnar defects, and nipple or apocrine gland hypoplasia, caused by TBX3 haploinsufficiency. Signs of hypogonadism were repeatedly reported, but the mechanisms remain elusive. We aim to assess the origin of hypogonadism in two families with UMS. Read More

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December 2018
1 Read

[Application of image-guided system in endoscopic sinus and skull base surgery].

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018 Dec;32(24):1856-1859

Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital, Fudan University, Shanghai, 200040,China.

To evaluate the applicative value of image-guided system in endoscopic sinus and skull base surgeries. A total of 103 endoscopic surgical procedures were performed.All these procedures were conducted with the utilization of image-guided system, among which there were 92 cases of sinonasal-skull base surgery(including nasal sinuses resection of benign and malignant tumors involving skull base lesions, the cumulative orbital lesion resection of nasal sinus lesions, etc. Read More

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December 2018

Factors Influencing Visual Field Recovery after Transsphenoidal Resection of a Pituitary Adenoma.

Korean J Ophthalmol 2018 Dec;32(6):488-496

Department of Ophthalmology and Research Institute of Medical Sciences, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea.

Purpose: This study aimed to analyze the factors influencing visual field recovery after transsphenoidal approach-tumor resection (TSA-TR) in pituitary adenoma patients with visual field defects (VFDs).

Methods: We retrospectively evaluated 102 eyes of 102 patients with VFDs induced by pituitary adenomas who underwent TSA-TR between January 2010 and December 2015. All patients had been observed for more than one year. Read More

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December 2018
1 Read

Quality of life is significantly impaired in both secretory and non-functioning pituitary adenomas.

Clin Endocrinol (Oxf) 2018 Dec 12. Epub 2018 Dec 12.

Neuroendocrinology Clinic, Department of Endocrinology and Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán.

Objective: To evaluate the quality of life (QoL) in patients with pituitary adenomas in comparison with healthy Mexican population QoL scores.

Design & Measurements: Cross-sectional study using the short form 36 questionnaire (SF-36) in 175 patients with pituitary adenomas grouped by adenoma subtype and disease activity, and compared them with the healthy Mexican population normative QoL scores.

Patients: 44 patients with non-functioning pituitary adenomas (NFPA), 48 with acromegaly, 53 with prolactinomas and 30 with Cushing disease (CD) were enrolled in this study. Read More

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December 2018

Novel GLI2 mutations identified in patients with Combined Pituitary Hormone Deficiency (CPHD): evidence for a pathogenic effect by functional characterization.

Clin Endocrinol (Oxf) 2018 Dec 12. Epub 2018 Dec 12.

Laboratory of Genetics, Department of Health Sciences, University of Eastern Piedmont, Novara, Italy.

Context: The Gli-family of zinc-finger transcription factors regulates the Sonic Hedgehog (Shh) signalling pathway that plays a key role in early pituitary and ventral forebrain development. Heterozygous GLI2 loss of function mutations in humans have been reported in holoprosencephaly (HPE), HPE-like phenotypes associated with pituitary anomalies and combined pituitary hormone deficiency with or without other extra pituitary findings.

Objective: The aim of this study was the search for GLI2 mutations in a cohort of Italian CPHD patients and the assessment of a pathogenic role for the identified variants through in vitro studies. Read More

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December 2018

PACAP through EGFR transactivation preserves human corneal endothelial integrity.

J Cell Biochem 2018 Dec 11. Epub 2018 Dec 11.

Department of Biomedical and Biotechnological Sciences, Section of Human Anatomy and Histology, University of Catania, Catania, Italy.

The corneal endothelium is composed of a single hexagonal-shaped cells layer adherent to the Descemet's membrane. The primary function of these cells is maintaining of tissue clarity by regulating its hydration. Trauma, aging or other pathologies cause their loss, counterbalanced by enlargement of survived cells unable to guarantee an efficient fluid pumping to and from the stroma. Read More

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December 2018
1 Read

Cytokines and male infertility.

Eur Cytokine Netw 2018 Sep;29(3):73-82

Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Greece. "Papageorgiou General Hospital", Ring Road-Nea Efkarpia, 56403 Thessaloniki, Greece.

Many male infertility cases have no apparent cause, being characterized as idiopathic. Both inflammation and obesity have long been associated with infertility. On one hand, inflammation, such as orchitis and male accessory gland infections (MAGIs), are regulated by inflammatory cytokines. Read More

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September 2018
3 Reads

Relationship of leptin, growth hormone, and insulin-like growth factor levels with body mass index and disease severity in patients with fibromyalgia syndrome.

Acta Neurol Belg 2018 Dec 13. Epub 2018 Dec 13.

Physical Medicine and Rehabilitation Clinic, Bingöl State Hospital, Bingöl, Turkey.

Objective: A high prevalence of obesity in fibromyalgia syndrome (FMS) predisposes patients to metabolic changes. It is not clear how the clinical manifestations of the disease affect metabolism. This study aimed to investigate leptin, growth hormone (GH), and insulin-like growth factor (IGF-1) levels in FMS, and their relationship with body mass index (BMI) and disease severity. Read More

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December 2018
1 Read

Primary hypophysitis and other autoimmune disorders of the sellar and suprasellar regions.

Rev Endocr Metab Disord 2018 Dec 13. Epub 2018 Dec 13.

Medicover GmbH, Berlin/Hannover, Germany.

The pituitary gland and the hypothalamus can be affected by autoimmune-mediated structural and functional disruption. These autoimmune-mediated diseases occur more commonly in females and are often found during pregnancy or in the post-partum period. Autoimmune diseases can either affect parts of the pituitary or hypothalamus, or can involve both sellar and suprasellar structures. Read More

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December 2018
1 Read

Canagliflozin improves obesity and insulin resistance in a diabetic patient with Cushings disease undergoing postoperative steroid therapy: A case report.

Biomed Rep 2018 Dec 1;9(6):497-502. Epub 2018 Oct 1.

Department of Immunology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan.

A 47-year-old woman with diabetes treated with high-dose insulin was admitted to Mie University Hospital, Tsu, Japan, for screening of secondary diabetes mellitus and obesity. Laboratory tests and imaging studies were consistent with Cushing's disease (CD). The patient underwent trans-sphenoidal pituitary surgery. Read More

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December 2018

Transmission of amyloid-β protein pathology from cadaveric pituitary growth hormone.

Nature 2018 Dec 13. Epub 2018 Dec 13.

MRC Prion Unit at UCL, UCL Institute of Prion Diseases, London, UK.

We previously reported the presence of amyloid-β protein (Aβ) deposits in individuals with Creutzfeldt-Jakob disease (CJD) who had been treated during childhood with human cadaveric pituitary-derived growth hormone (c-hGH) contaminated with prions. The marked deposition of parenchymal and vascular Aβ in these relatively young individuals with treatment-induced (iatrogenic) CJD (iCJD), in contrast to other prion-disease patients and population controls, allied with the ability of Alzheimer's disease brain homogenates to seed Aβ deposition in laboratory animals, led us to argue that the implicated c-hGH batches might have been contaminated with Aβ seeds as well as with prions. However, this was necessarily an association, and not an experimental, study in humans and causality could not be concluded. Read More

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December 2018
11 Reads

In vitro effect of orexin A on the transcriptomic profile of the endometrium during early pregnancy in pigs.

Anim Reprod Sci 2018 Nov 20. Epub 2018 Nov 20.

Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn-Kortowo, Poland. Electronic address:

Orexin A belongs to the group of hypothalamic-derived peptides that are involved in a number of processes, such as regulation of energy metabolism, control of food intake and regulation of the reproductive system, by influencing the hypothalamic-pituitary-ovarian axis. Orexin A is also present in the endometrium, myometrium and placenta, which indicates that it may function as an important local regulator of the reproductive functions. The aim of this study was to explore the effects of orexin A on global gene expression in the endometrium of pigs during early gestation, on days 15 to 16 of pregnancy (implantation period). Read More

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November 2018

Hypopituitarism after Gamma Knife surgery for postoperative nonfunctioning pituitary adenoma.

Authors:

J Neurosurg 2018 Dec;129(Suppl1):47-54

OBJECTIVEThis study investigated long-term follow-up data on the combined pituitary function test (CPFT) in patients who had undergone transsphenoidal surgery (TSS) for nonfunctioning pituitary adenoma (NFPA) to determine the clinical parameters indicative of hypopituitarism following postoperative Gamma Knife surgery (GKS).METHODSBetween 2001 and 2015, a total of 971 NFPA patients underwent TSS, and 76 of them (7.8%) underwent postoperative GKS. Read More

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December 2018

Neurocognitive changes in pituitary adenoma patients after Gamma Knife radiosurgery.

Authors:

J Neurosurg 2018 Dec;129(Suppl1):55-62

OBJECTIVEPituitary adenomas and the treatment required for the underlying neuropathology have frequently been associated with cognitive dysfunction. However, the mechanisms for these impairments remain the subject of much debate. The authors evaluated cognitive outcomes in patients treated with or without Gamma Knife radiosurgery (GKRS) for an underlying pituitary adenoma. Read More

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December 2018

Maternal high fat diet programs hypothalamic-pituitary-adrenal function in adult rat offspring.

Psychoneuroendocrinology 2018 Dec 6;102:128-138. Epub 2018 Dec 6.

Department of Neurology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China. Electronic address:

Maternal environmental factors such as diet have profound effects on offspring development and later health. The hypothalamic-pituitary-adrenal (HPA) axis is an important stress neuroendocrine system that is subject to programming by early life challenges. The present study was further to investigate whether maternal high fat diet (HFD) exposure during rat pregnancy and lactation can alter the HPA axis activity in adult male offspring. Read More

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December 2018
1 Read

Retinoprotective Effects of TAT-Bound Vasoactive Intestinal Peptide and Pituitary Adenylate Cyclase Activating Polypeptide.

J Mol Neurosci 2018 Dec 12. Epub 2018 Dec 12.

Institute of Biomedicine, Jinan University, Guangzhou, China.

Vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase activating polypeptide (PACAP) belong to the same peptide family and exert a variety of biological functions. Both PACAP and VIP have protective effects in several tissues. While PACAP is known to be a stronger retinoprotective peptide, VIP has very potent anti-inflammatory effects. Read More

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December 2018

Pituitary adenoma apoplexy associated with vardenafil intake.

Acta Neurochir (Wien) 2018 Dec 12. Epub 2018 Dec 12.

Department of Neurological Surgery, Dentistry, and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.

Vardenafil is a potent phosphodiesterase-5 (PDE-5) inhibitor used in the treatment of erectile dysfunction. Several cases of stroke related to the use of PDE-5 inhibitors have been reported. Here, we describe the case of a 51-year-old man with headache and right ophthalmoplegia subsequent to vardenafil consumption. Read More

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December 2018
1 Read

A two‑circRNA signature predicts tumour recurrence in clinical non‑functioning pituitary adenoma.

Oncol Rep 2018 Nov 2. Epub 2018 Nov 2.

Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, P.R. China.

Clinical non‑functioning pituitary adenoma (NFPA) accounts for >30% of all pituitary adenomas, and the recurrence rate is notably high. The ability to predict tumour recurrence during initial surgery will aid in determining if adjunctive therapy is required to reduce recurrence. With the aim of developing a circular RNA (circRNA) signature to improve prognosis prediction in NFPA, the present study examined the circRNA expression profiles in 73 patients with NFPA from Beijing Tiantan Hospital using high‑throughput RNA chip technology. Read More

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November 2018

Pituitary Metastasis in a Patient with Pulmonary Adenocarcinoma Presenting with a Disturbance of Consciousness.

Klin Onkol 2018 ;31(5):371-375

Background: Brain metastases are one of the main causes of morbidity and mortality of patients with oncological disease. In non-small cell lung carcinoma (NSCLC), the risk of CNS secondary development is 30-50%. An unusual diagnostic and therapeutic problem is the finding of suspicious pituitary lesions. Read More

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January 2018

Corrigendum to "Toxic Effects of Trazodone on Male Reproductive System via Disrupting Hypothalamic-Pituitary-Testicular Axis and Inducing Testicular Oxidative Stress".

Oxid Med Cell Longev 2018 5;2018:8294061. Epub 2018 Nov 5.

Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Anadolu University, Eskisehir, Turkey.

[This corrects the article DOI: 10.1155/2018/7196142.]. Read More

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November 2018

Vision Loss from Choroidal and Pituitary Metastases Secondary to Renal Cell Carcinoma: A Case Report.

Neuroophthalmology 2018 Dec 19;42(6):391-398. Epub 2018 Jun 19.

Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, USA.

A 62-year-old male with a history of metastatic clear cell renal cell carcinoma (ccRCC) presented with decreased vision to 20/50 in the left eye. Fundus examination revealed an elevated, amelanotic mass lesion in the superotemporal macula, without involvement of the central macula by subretinal fluid or tumour. Given incongruity between the fundus findings and the degree of visual impairment, visual field testing was obtained, revealing a bitemporal hemianopia. Read More

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December 2018

Compressive Lesions of the Optic Chiasm: Subjective Symptoms and Visual Field Diagnostic Criteria.

Neuroophthalmology 2018 Dec 11;42(6):343-348. Epub 2018 Sep 11.

Department of Ophthalmology, School of Medicine, Kitasato University, Sagamihara, Japan.

We investigated the diagnostic ability of a new criterion (simple temporal depression) for compressive lesions of the optic chiasm. The subjects were 124 eyes with compressive lesions of the optic chiasm. The controls were 84 eyes. Read More

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December 2018

Levels of Cortisol in CSF Are Associated With SNAP-25 and Tau Pathology but Not Amyloid-β.

Front Aging Neurosci 2018 20;10:383. Epub 2018 Nov 20.

Independent Researcher, Hangzhou, China.

Preclinical studies have found both hyperactivity of hypothalamic- pituitary- adrenal (HPA) axis and synaptic degeneration are involved in the pathogenesis of Alzheimer's disease (AD). However, the data on the relationship of activity of HPA axis and synaptic degeneration in humans are limited. We compared CSF cortisol levels in 310 subjects, including 92 cognitively normal older people, 149 patients with mild cognitive impairment (MCI), and 69 patients with mild AD. Read More

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November 2018

Use of optical fluorescence agents during surgery for pituitary adenomas: current state of the field.

J Neurooncol 2018 Dec 6. Epub 2018 Dec 6.

Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.

Introduction: Differentiation of normal pituitary from abnormal tumor tissue remains a surgical challenge despite improvements in optical visualization technology for pituitary adenoma (PA) surgery. During neurosurgical procedures for other tumor types, 5-aminolevulinic acid (5-ALA) has become a focus of investigation based on its high specificity in differentiating tumor tissue. However, the role of 5-ALA and other optical fluorescent agents in PA surgery remains less clear. Read More

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December 2018

Clomiphene Citrate for the Treatment of Hypogonadism.

Sex Med Rev 2018 Dec 3. Epub 2018 Dec 3.

Department of Urology, University of Virginia, Charlottesville, VA, USA.

Introduction: Clomiphene citrate (CC) is a selective estrogen receptor modulator that has been used for the treatment of hypogonadism in men since the 1970s. It acts centrally to increase secretion of luteinizing hormone and follicle-stimulating hormone, thereby increasing testosterone production and serum levels. Unlike testosterone replacement therapy, CC does not suppress the hypothalamic-pituitary-gonadal axis, preserving intratesticular testosterone production and spermatogenesis. Read More

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December 2018

Thyroid Sequelae of Pediatric Cancer Therapy.

Horm Res Paediatr 2018 Dec 12:1-14. Epub 2018 Dec 12.

The hypothalamic-pituitary-thyroid axis is a common site of unintended, acquired disease either during or after the treatment of cancer. Children treated with external radiation therapy are at the highest risk for developing a thyroid-related late effect, but thyroid dysfunction and second primary thyroid neoplasms can also occur after treatment with radiopharmaceutical agents such as 131I-metaiodobenzylguanidine. Increasingly recognized is the development of early thyroid dysfunction as an off-target consequence of the more novel cancer therapeutics such as the tyrosine kinase inhibitors and immune checkpoint inhibitors. Read More

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December 2018
3 Reads

Evaluation of bendable surgical suction devices made of shape-memory alloy for the endonasal transsphenoid removal of pituitary tumors.

Ear Nose Throat J 2018 Dec;97(12):413-416

Department of Medical Engineering, Fraunhofer Institute for Machine Tools and Forming Technology, Nöthnitzer Straße 44, 01187 Dresden, Germany.

In minimally invasive surgeries, it can be difficult to reach desired anatomic areas with rigid instruments, especially when obstacles are present in the surgical corridor (e.g., during transnasal pituitary surgery). Read More

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December 2018

Salivary Biomarkers of Parenting Stress in Mothers Under Community Criminal Justice Supervision.

Nurs Res 2019 Jan/Feb;68(1):48-56

Jenna K. Rieder, BA, is Research Assistant, The Graduate Center, The City University of New York, NY. Lorie S. Goshin, PhD, RN, is Assistant Professor; and D.R. Gina Sissoko, BA, is Research Assistant, Hunter College, The City University of New York, NY. Olena Kleshchova, MS, is Research Assistant, The Graduate Center, The City University of New York, NY. Mariann R. Weierich, PhD, is Associate Professor, Hunter College, The City University of New York, NY.

Background: Community criminal justice supervised mothers are an underserved population who experience high rates of psychological distress and unique parenting challenges, but little is known about physiological stress system function in this population.

Objective: We tested the salivary biomarkers of the sympathetic nervous system (SNS) and hypothalamic-pituitary-adrenal (HPA) axis function as predictors of subjective maternal stress.

Method: We recruited 23 mothers (age: M = 35. Read More

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January 2020

Cabergoline in the Management of Residual Nonfunctioning Pituitary Adenoma: A Single-Center, Open-Label, 2-Year Randomized Clinical Trial.

Am J Clin Oncol 2018 Dec 11. Epub 2018 Dec 11.

Division of Functional Neurosurgery, Institute of Psychiatry-IPq, Hospital das Clinicas, FMUSP.

Background: Complete tumor removal by transsphenoidal surgery is usually difficult for large nonfunctioning pituitary adenomas (NFPAs). A validated medical treatment may be useful for their management. This study evaluates the clinical efficacy of the dopaminergic agonist cabergoline for residual NFPA. Read More

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December 2018

Mechanisms of disease: The endocrinology of obstructive sleep apnoea.

Eur J Endocrinol 2018 Dec 1. Epub 2018 Dec 1.

A Tahrani, University of Birmingham, Institute of Metabolism and Systems Research, Birmingham, United Kingdom of Great Britain and Northern Ireland.

Obstructive sleep apnoea (OSA) is a common disorder that is associated with serious co-morbidities with a negative impact on quality of life, life expectancy and health costs. As OSA is related to obesity and is associated with sleep disruption, increased inflammation and oxidative stress, it is not surprising that OSA has an impact on the secretion of multiple hormones and is implicated in the development of many endocrine conditions. On the other hand, many endocrine conditions that can affect obesity and/or upper airways anatomy and stability have been implicated in the development or worsening of OSA. Read More

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December 2018
1 Read

MRI T2 signal intensity and tumor response in patients with GH-secreting pituitary macroadenoma: PRIMARYS post-hoc analysis.

Eur J Endocrinol 2018 Dec 1. Epub 2018 Dec 1.

P Caron, Department of Endocrinology and Metabolic Diseases, Centre Hospitalier Universitaire Larrey, Toulouse, France.

Objective Pituitary adenoma MRI T2 signal intensity associates with tumor characteristics including responsiveness to somatostatin analogs (SSAs). These analyses determined whether baseline T2 signal intensity predicts response to primary medical treatment with long-acting SSA. Design Post-hoc analyses of the prospective multicenter, open-label, single-arm PRIMARYS study in which patients with treatment-naïve GH-secreting pituitary macroadenomas received fixed-dose lanreotide autogel (120mg) every 4-weeks for 48-weeks. Read More

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December 2018

Activin A in Mammalian Physiology.

Physiol Rev 2019 Jan;99(1):739-780

Department of Morphology, Universidade Federal de Minas Gerais , Belo Horizonte , Brazil ; Department of Experimental and Clinical Medicine, Università Politecnica delle Marche , Ancona , Italy ; Department of Obstetrics and Gynecology, Universidade Federal de Minas Gerais , Belo Horizonte , Brazil ; Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena , Siena , Italy ; and Department of Biomedical, Experimental and Clinical Sciences, Division of Obstetrics and Gynecology, University of Florence, Careggi University Hospital , Florence , Italy.

Activins are dimeric glycoproteins belonging to the transforming growth factor beta superfamily and resulting from the assembly of two beta subunits, which may also be combined with alpha subunits to form inhibins. Activins were discovered in 1986 following the isolation of inhibins from porcine follicular fluid, and were characterized as ovarian hormones that stimulate follicle stimulating hormone (FSH) release by the pituitary gland. In particular, activin A was shown to be the isoform of greater physiological importance in humans. Read More

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January 2019
1 Read
27.324 Impact Factor

Leptin and its actions on reproduction in males.

Asian J Androl 2018 Dec 11. Epub 2018 Dec 11.

Department of Physiology, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Sg Buloh 47000, Selangor, Malaysia.

Leptin, an adipocyte-derived hormone, serves numerous physiological functions in the body, particularly during puberty and reproduction. The exact mechanism by which leptin activates the gonadotropin-releasing hormone (GnRH) neurons to trigger puberty and reproduction remains unclear. Given the widespread distribution of leptin receptors in the body, both central and peripheral mechanisms involving the hypothalamic-pituitary-gonadal axis have been hypothesized. Read More

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December 2018
2 Reads
2.530 Impact Factor

[68Ga]-Dota Peptide Pet/Ct In Neuroendocrine Tumors: Main Clinical Applications.

Curr Radiopharm 2018 Dec 11. Epub 2018 Dec 11.

Department of Nuclear Medicine, S. Andrea Hospital, La Spezia. Italy.

Objective: Neuroendocrine neoplasms (NENs) are generally defined as rare and heterogeneous tumors. The gastrointestinal system is the most frequent site of NENs localization, however they can be found in other anatomical regions, such as pancreas, lungs, ovaries, thyroid, pituitary, and adrenal glands. Neuroendocrine neoplasms have significant clinical manifestations depending on the production of active peptide. Read More

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December 2018

Brain of the blind: transcriptomics of the golden-line cavefish brain.

Curr Zool 2018 Dec 12;64(6):765-773. Epub 2018 Jan 12.

Institute of Neuroscience, University of Oregon, Eugene, OR, USA.

The genus (golden-line barbel) includes 25 species of cave-dwelling blind fish (cavefish) and more than 30 surface-dwelling species with normal vision. Cave environments are dark and generally nutrient-poor with few predators. Cavefish of several genera evolved convergent morphological adaptations in visual, pigmentation, brain, olfactory, and digestive systems. Read More

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December 2018
1 Read

Hypothyroidism after craniospinal irradiation with proton or photon therapy in patients with medulloblastoma.

Pediatr Hematol Oncol 2018 Dec 11:1-10. Epub 2018 Dec 11.

b Texas Children's Cancer and Hematology Centers , Houston , Texas , USA.

Background: Craniospinal irradiation (CSI) often results in endocrine deficiencies in children with medulloblastoma due to irradiation of the hypothalamic-pituitary axis (HPA) or the thyroid gland. CSI with Proton radiation therapy (PRT) has the potential to decrease the risk of hypothyroidism by reduction in radiation dose to these organs. This study compares the risk for hypothyroidism in patients with medulloblastoma treated with Photon radiation therapy (XRT) or PRT. Read More

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December 2018

Cortisol Stress Reactivity to the Trier Social Stress Test in Obese Adults.

Obes Facts 2018 Dec 11;11(6):491-500. Epub 2018 Dec 11.

Objective: Approximately 600 million adults worldwide suffer from obesity. In addition to individual's eating behavior and lack of physical activity in the development of obesity and overweight, psychosocial stress as well as hormonal stress reactivity must also be considered as important contributing factors. In the current study we compared the cortisol stress response pathway in a psychosocial stress induction (Trier Social Stress Test; TSST) with obese individuals and normal-weight controls. Read More

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December 2018
2 Reads

Role and mechanisms of a three-dimensional bioprinted microtissue model in promoting proliferation and invasion of growth-hormone-secreting pituitary adenoma cells.

Biofabrication 2018 Dec 11. Epub 2018 Dec 11.

Department of Mechanical Engineering, Biomanufacturing Center, Tsinghua University, Beijing, CHINA.

Growth-hormone-secreting pituitary adenoma (GHSPA) is a benign tumour with a high incidence and large economic burden, which greatly affects quality of life. The aetiological factors are yet to be clarified for GHSPA. Conventional two-dimensional (2D) monolayer culture of tumour cells cannot ideally reflect the growth status of tumours in the physiological environment, and insufficiencies of in vitro models have severely restricted the progress of cancer research. Read More

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December 2018
1 Read
4.289 Impact Factor

Review shows that thyroid hormone substitution could benefit transient hypothyroxinaemia of prematurity but treatment strategies need to be clarified.

Acta Paediatr 2018 Dec 7. Epub 2018 Dec 7.

Department of Neonatology, University Hospitals Leuven, KU, Leuven, Belgium.

Aim: Thyroid hormones are crucial for fetal and neonatal brain development. This paper provides an overview of the normal role of thyroid hormones in fetal brain development and the pathophysiology of transient hypothyroxinaemia of prematurity (THOP). It also discusses the diagnostic and therapeutic controversies around THOP and looks at directions for future research. Read More

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December 2018
1 Read

Supraglottic Squamous Cell Carcinoma: A Population-Based Study of 22,675 Cases.

Laryngoscope 2018 Dec 11. Epub 2018 Dec 11.

Department of Otolaryngology-Head and Neck Surgery, Neurological Institute of New Jersey, Newark, New Jersey, U.S.A.

Objectives/hypothesis: The authors used the Surveillance, Epidemiology, and End Results (SEER) database to analyze epidemiological features of patients presenting with supraglottic squamous cell carcinoma (SCCa) and to evaluate treatment trends and outcomes.

Methods: The SEER database was queried for patients with supraglottic SCCa from 1973 to 2013. Information on demographics; tumor size; histologic grade; American Joint Committee on Cancer (AJCC) stage; SEER local, regional, distant stage; and treatment modality were analyzed. Read More

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December 2018
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Concurrent pituitary and adrenocortical lesions on computed tomography imaging in dogs with spontaneous hypercortisolism.

J Vet Intern Med 2018 Dec 11. Epub 2018 Dec 11.

Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.

Background: Spontaneous hypercortisolism or Cushing's syndrome in dogs is either pituitary or adrenal dependent, but concurrent pituitary and adrenal hypercortisolism also has been reported.

Objective: To determine how often concurrent pituitary and adrenal lesions are present in dogs with spontaneous hypercortisolism.

Animals: Two hundred one client-owned dogs with spontaneous hypercortisolism. Read More

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December 2018