Article
Urology & Nephrology
Jun Ho Lee, Sung Won Lee
Summary: The study found that serum testosterone levels in middle-aged men vary monthly, with a nadir in May (4.4 ng/ml) and a peak in January (6.0 ng/ml). After adjusting for confounders, this monthly variation still exists, with testosterone levels showing a negative relationship with daylight duration and outdoor temperature.
JOURNAL OF UROLOGY
(2021)
Article
Endocrinology & Metabolism
Mathis Grossmann, Channa N. Jayasena, Bradley D. Anawalt
Summary: Although testosterone replacement therapy is commonly used for men with classical hypogonadism, its role in age-related decline of testosterone remains unclear due to limited evidence from long-term clinical trials. However, men aged 50 years and above with comorbidities and higher body mass index often exhibit symptoms of androgen deficiency and low testosterone levels. Clinicians face a challenging dilemma in initiating testosterone therapy and must carefully assess the benefits and risks based on limited clinical trial data. In this article, a practical approach to the assessment and management of such men is presented using a case scenario.
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
(2023)
Article
Urology & Nephrology
Alex Zhu, Juan Andino, Stephanie Daignault-Newton, Zoey Chopra, Aruna Sarma, James M. M. Dupree
Summary: There is an age-related decline in male testosterone production. It is important to use age-specific cutoffs for low testosterone levels in the evaluation of young men presenting with testosterone deficiency.
JOURNAL OF UROLOGY
(2022)
Article
Endocrinology & Metabolism
Jean-Marc Kaufman
Summary: The diagnosis of hypogonadism in ageing men requires attention to symptom specificity and measurement of serum testosterone levels. The diagnostic approach to late onset hypogonadism is similar to other forms of hypogonadism, but with a focus on avoiding overdiagnosis.
REVIEWS IN ENDOCRINE & METABOLIC DISORDERS
(2022)
Article
Endocrinology & Metabolism
Shang-Rong Zhong, Han-Hsuan Yang, Cheng-Hsi Liao, Deng-Ho Yang, Shih-Kai Tu, Chia-Lien Hung, Chun-Cheng Liao
Summary: The study revealed a strong association between serum testosterone and metabolic syndrome in Taiwanese men, with the predictive value increasing with age.
DIABETES METABOLIC SYNDROME AND OBESITY-TARGETS AND THERAPY
(2021)
Article
Andrology
Sky Graybill, Jennifer Hatfield, Maria Kravchenko, Darrick Beckman, Joshua Tate, Alexis Beauvais, Philip Clerc, Desarae Davila, Whitney Forbes, Jana Wardian, Matthew Kemm, Abegail Hubberd, Mark True
Summary: This study found that GLP-1 RA therapy improved weight and HbA1c without adverse effects on testosterone levels. Patients with lower baseline testosterone values or greater improvements in HbA1c may see additional benefits.
Review
Gastroenterology & Hepatology
Nanfu Deng, Niharika Mallepally, Frederick B. Peng, Aleem Kanji, Marco Marcelli, Ruben Hernaez
Summary: Low serum testosterone is associated with increased morbidity and mortality in cirrhosis patients. Testosterone supplementation improved intermediate endpoints, but there was no conclusive data on clinical outcomes.
LIVER INTERNATIONAL
(2021)
Article
Urology & Nephrology
Stanton Honig, Marc Gittelman, Jed Kaminetsky, Christina Wang, John K. Amory, Nestor Rohowsky, Robert E. Dudley, B. Woun Seo, Jay Newmark, Ronald Swerdloff
Summary: The long-term use of oral testosterone undecanoate (JATENZO) in adult hypogonadal men has been shown to be effective and safe, resulting in increased total testosterone levels and improved psychosexual functioning. These findings provide important insights for healthcare professionals who prescribe testosterone replacement therapy.
JOURNAL OF SEXUAL MEDICINE
(2022)
Review
Endocrinology & Metabolism
Sara De Vincentis, Vincenzo Rochira
Summary: Hypogonadism is common in HIV-positive men and tends to occur earlier compared to the general male population. It can be easily underestimated due to non-specific symptoms and overlaps with symptoms of HIV infection. Laboratory examinations are necessary to accurately diagnose hypogonadism in this population.
FRONTIERS IN ENDOCRINOLOGY
(2023)
Article
Endocrinology & Metabolism
Andrea Delbarba, Deborah Cosentini, Paolo Facondo, Marta Lagana, Letizia Chiara Pezzaioli, Valentina Cremaschi, Andrea Alberti, Salvatore Grisanti, Carlo Cappelli, Alberto Ferlin, Alfredo Berruti
Summary: Hypogonadism is common in male patients with adrenocortical carcinoma (ACC) who undergo mitotane treatment, and this should be promptly detected and counteracted to minimize the negative impact on quality of life.
FRONTIERS IN ENDOCRINOLOGY
(2023)
Article
Peripheral Vascular Disease
William B. White, James S. Bernstein, Roger Rittmaster, Om Dhingra
Summary: The new formulation of testosterone undecanoate therapy can lead to minor increases in ambulatory blood pressure, with no further significant changes observed after 180 days of treatment. Patients not taking antihypertensive drugs experienced minimal changes in ambulatory blood pressure.
JOURNAL OF CLINICAL HYPERTENSION
(2021)
Article
Medical Laboratory Technology
Mark Livingston, Geoffrey Hackett, Sudarshan Ramachandran, Adrian Heald
Summary: The study found that fasting and non-fasting status did not significantly affect testosterone levels in men, and there were no significant differences in testosterone levels between different samples. Therefore, fasting status is not required when checking testosterone levels, which could help in removing a major hurdle in the diagnosis of hypogonadism.
CLINICA CHIMICA ACTA
(2021)
Article
Endocrinology & Metabolism
Robert Benson Jones Jr, Peter J. Snyder
Summary: This study aims to determine if testosterone treatment of men with unequivocal hypogonadism and organ-confined prostate cancer is associated with recurrence of the cancer. Previous studies on testosterone treatment of men with treated prostate cancer have not provided clear evidence that these men were truly hypogonadal.
ENDOCRINE PRACTICE
(2023)
Article
Urology & Nephrology
Bryan Naelitz, Anup Shah, Amy S. Nowacki, Darren J. Bryk, Nicholas Farber, Neel Parekh, Daniel Shoskes, Betul Hatipoglu, Sarah C. Vij
Summary: This study aimed to identify predictor variables associated with pituitary abnormalities in hypogonadal men with mild hyperprolactinemia and develop a decision-making aid. Results showed that referencing multiple serological variables, particularly the prolactin-to-testosterone ratio, can improve detection sensitivity. Screening this population before ordering pituitary magnetic resonance imaging may lead to substantial cost avoidance.
JOURNAL OF UROLOGY
(2021)
Review
Endocrinology & Metabolism
Shalender Bhasin, Noelle Ozimek
Summary: This narrative review provides a guideline-based approach for optimizing diagnostic evaluation and treatment decision making in men being evaluated for testosterone deficiency. The diagnosis of testosterone deficiency is made through ascertainment of symptoms and signs, blood tests, and additional evaluations. Testosterone replacement therapy should be carefully considered based on the burden of symptoms, potential benefits and risks, patient's values, and the cost and burden of long-term treatment and monitoring.
ENDOCRINE PRACTICE
(2021)
Letter
Genetics & Heredity
Andrew A. Dwyer, Kathleen A. Calzone, Sarah Dewell, Laurie Badzek, Christine Patch
GENETICS IN MEDICINE
(2022)
Article
Oncology
Andrew A. Dwyer, Sharlene Hesse-Biber, Hannah Shea, Ziwei Zeng, Shiya Yi
Summary: Research has shown that BRCA+ men have higher levels of distress, uncertainty, and negative experiences related to their BRCA status compared to BRCA- men, but lower distress and uncertainty levels compared to BRCA+ women. Qualitative analysis revealed promoters and barriers to active coping response and intra-familial communication of risk for BRCA+ men. The Theory of Planned Behavior was used to identify targets for tailored interventions to promote communication of BRCA risk among men.
Article
Endocrinology & Metabolism
Phillip Yeoh, Andrew A. Dwyer, Ella Anghel, Pierre M. Bouloux, Bernard Khoo, Shern Chew, Florian Wernig, Paul Carroll, Simon J. B. Aylwin, Stephanie E. Baldeweg, William Drake, Jeannie Todd, Lindiwe Mangena, Ashley Grossman
Summary: This study compared the effects of a standard dose and a low dose of insulin tolerance test (ITT) on glucose, cortisol, and growth hormone (GH) responses. The results showed that the low-dose ITT produced comparable glucose, cortisol, and GH responses to the standard dose. Given the risks associated with hypoglycaemia, the low dose appears to be preferable to the standard dose ITT in most circumstances.
INTERNATIONAL JOURNAL OF ENDOCRINOLOGY
(2022)
Editorial Material
Nursing
Brien Mehmet, Isabella R. McDonald, Sarah Saldarriaga, Maria Pineros-Leano, Andrew A. Dwyer
JOURNAL OF PEDIATRIC NURSING-NURSING CARE OF CHILDREN & FAMILIES
(2022)
Editorial Material
Endocrinology & Metabolism
Andrew A. Dwyer
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
(2022)
Article
Oncology
Sharlene Hesse-Biber, Memnun Seven, Jing Jiang, Sara Van Schaik, Andrew A. Dwyer
Summary: This study aimed to understand the self-concept and experiences of BRCA+ women in balancing cancer risk and reproductive decisions after learning their BRCA+ status. The study found that younger women were more likely to decide to have children after learning their BRCA+ status or undergoing risk-reducing surgery. Comparatively, BRCA+ women of reproductive age exhibited a more negative self-concept and higher vulnerability ratings. Women with a cancer diagnosis had more negative mastery ratings and worse vulnerability ratings than women without a cancer history. Additionally, BRCA+ women who had children before learning their BRCA status and/or undergoing risk-reducing surgery displayed significantly higher vulnerability ratings. In-depth interviews provided insights into the effects of BRCA status on decisions regarding relationships, childbearing, cancer risk management, and communicating BRCA risk to children. Integrating quantitative and qualitative findings can guide tailored interventions to enhance precision health for BRCA+ women of reproductive age.
Article
Nursing
Elizabeth A. Weyman, Isabella R. Mcdonald, Elizabeth S. Blocker, Corrine K. Welt, Andrew A. Dwyer
Summary: Idiopathic primary ovarian insufficiency is a reproductive endocrine disorder characterized by infertility, estrogen deficiency, and premature menopause. It has long-term physical and psychosocial effects and is often underrecognized and difficult to diagnose. This review provides an overview of POI, including diagnosis and management, and emphasizes the role of nurse practitioners in holistic care.
JNP- THE JOURNAL FOR NURSE PRACTITIONERS
(2023)
Article
Nursing
Andrew A. Dwyer, Yee-ming Chan
Summary: Delayed puberty affects a small percentage of the population and is a common reason for seeking medical consultation. Differentiating between constitutional delay of puberty and congenital hypogonadotropic hypogonadism can be challenging as there is no single definitive test. This report provides an overview of puberty, highlights clinical signs of congenital hypogonadotropic hypogonadism, and emphasizes the importance of comprehensive care.
JNP- THE JOURNAL FOR NURSE PRACTITIONERS
(2023)
Article
Endocrinology & Metabolism
Dogan Grepper, Cassandra Tabasso, Axel K. F. Aguettaz, Adrien Martinotti, Ammar Ebrahimi, Sylviane Lagarrigue, Francesca Amati
Summary: A reproducible and fast method for imaging zebrafish larvae without losing lipid droplet quality and organ morphology was proposed in this study. The impact of high-fat diet on lipid droplet characteristics in the liver and skeletal muscle, accompanied by alterations in key players of fat metabolism, was demonstrated. The methodological advancements proposed in this work open doors for studying organelle adaptations in obesity and diabetes-related research.
MOLECULAR METABOLISM
(2023)
Article
Multidisciplinary Sciences
Ali Seifinejad, Mergim Ramosaj, Ling Shan, Sha Li, Marie-Laure Possovre, Corinne Pfister, Rolf Fronczek, Lee A. Garrett-Sinha, David Frieser, Makoto Honda, Yoan Arribat, Dogan Grepper, Francesca Amati, Marie Picot, Andrea Agnoletto, Christian Iseli, Nicolas Chartrel, Roland Liblau, Gert J. Lammers, Anne Vassalli, Mehdi Tafti
Summary: Narcolepsy with cataplexy is caused by deficiency in the neuropeptide hypocretin/orexin (HCRT), believed to result from autoimmune destruction of hypocretin-producing neurons. Loss of hypothalamic CRH-producing neurons suggests that mechanisms other than autoimmune attack are involved. HCRT, PDYN, and CRH are epigenetically silenced by hypothalamic inflammation in narcolepsy patients, without concurrent cell death. Methylation reversal may lead to a potential cure for narcolepsy.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Review
Genetics & Heredity
Joanne Thomas, Jordan Keels, Kathleen A. Calzone, Laurie Badzek, Sarah Dewell, Christine Patch, Emma T. Tonkin, Andrew A. Dwyer
Summary: This study conducted a systematic review of the literature to examine the current state of genomics in nursing. The findings indicate that while genomics is increasingly relevant to nursing, there is a need to shift focus from descriptive work to interventional studies and implementation of genomics into nursing practice.
Article
Genetics & Heredity
Sharlene Hesse-Biber, Memnun Seven, Hannah Shea, Madeline Heaney, Andrew A. Dwyer
Summary: Decision-making on familial BRCA risk communication and cascade screening is influenced by various factors. This study explores the factors affecting communication among ethnically and racially diverse individuals tested for BRCA variants. The findings provide guidance for theory-driven interventions to promote the utilization of genomic healthcare and address disparities.
Review
Health Care Sciences & Services
Isabella R. McDonald, Elizabeth S. Blocker, Elizabeth A. Weyman, Neil Smith, Andrew A. Dwyer
Summary: Co-creating patient-facing educational materials can enhance person-centered care, but there is limited data on 'best practices'. This study conducted a systematic literature search, included 44 empirical studies, and identified six best practices. It highlights the need for clear definitions and validated evaluation measures to guide and assess the co-creation process.
Article
Medicine, Research & Experimental
Yohan Bignon, Leonore Wigger, Camille Ansermet, Benjamin D. Weger, Sylviane Lagarrigue, Gabriel Centeno, Fanny Durussel, Lou Gotz, Mark Ibberson, Sylvain Pradervand, Manfredo Quadroni, Meltem Weger, Francesca Amati, Frederic Gachon, Dmitri Firsov
Summary: Rhythmic adaptations in renal metabolism are suggested by circadian rhythmicity in renal function. By studying diurnal changes in renal metabolic pathways, we found that a significant number of RNAs, proteins, and metabolites in the kidneys of control mice display rhythmicity. Disruptions in key metabolic pathways were observed in the kidneys of mice with an inducible deletion of the circadian clock regulator Bmal1, resulting in impaired mitochondrial activity. The reabsorption of carnitine from primary urine was particularly affected, leading to decreased plasma and tissue carnitine levels.
JOURNAL OF CLINICAL INVESTIGATION
(2023)
Review
Obstetrics & Gynecology
Isabella McDonald, Corrine Welt, Andrew A. Dwyer
Summary: Women with idiopathic primary ovarian insufficiency (POI) have unmet psychosocial needs related to health-related quality of life (HR-QoL), including the themes of 'diagnostic odyssey', 'isolation and stigma', and impaired 'ego integrity'. The findings of this study are important for informing tailored interventions to support active coping and improve HR-QoL in women with POI.
HUMAN REPRODUCTION
(2022)