Results 61 to 70 of about 81,848 (246)

Rapid hormonal rise in honey bees due to heat‐shock is mitigated by a primer pheromone

Insect Science, EarlyView.
We show that honey bee foragers increased juvenile hormone (JH) titers significantly after heat‐shocked for 1 h at 40 °C, but this increase is dependent on social conditions. Increase of JH titers only happened when bees were isolated (one worker bee per vial) but not in groups.
Thomas Rachman, Zachary Y. Huang
wiley   +1 more source

Testicular histopathology and its association with germ cell numbers, serum concentrations of reproductive hormones, and semen quality

Andrology, EarlyView.
Abstract Background It is well‐established that spermatogenesis, semen quality, and reproductive hormones are interlinked. It is, however, less well‐described how various specific testicular histopathologies are linked to reproductive hormones and semen quality.
Gülizar Saritas, Nina Mørup, Trine H. Johannsen, Anders Juul, Lise Aksglaede, Sofia B. Winge, Kristian Almstrup   +6 more
wiley   +1 more source

Association Between FTO rs1558902 Polymorphism, Age‐Related Hypogonadism, and Central Obesity in Japanese Men

Andrology, EarlyView.
ABSTRACT Background Obesity and low testosterone levels are closely interconnected, with the FTO gene being the most robust genetic determinant of body mass index (BMI). However, whether this primary genetic driver of obesity directly influences the hypothalamic‐pituitary‐testicular (HPT) axis remains unclear.
Takahiro Tsutsumi, Hideyuki Okuma, Fuminori Kazama, Masumi Endo, Yuna Takato, Hitomi Nara, Asako Miyazaki, Nozomi Harai, Kyoichiro Tsuchiya   +8 more
wiley   +1 more source

Development and validation of a solid phase radioimmunoassay system for the determination of pregnancy-associated glycoproteins in bovine serum [PDF]

Kafkas Universitesi Veteriner Fakültesi Dergisi
The Pregnancy-Associated Glycoproteins (PAGs) belong to aspartic protease family and are synthesized by trophoblast cells of ruminant placenta and secreted into maternal blood and milk.
Aldjia BENABDELAZIZ, Samia BOUDJEMAI, Ahmed Amine ABDELLI, Rachid KHELILI, Rachid KAIDI, Nora MIMOUNE   +5 more
doaj   +1 more source

Marginal Changes in Semen Quality Over Three Decades (1996‒2022) Among 8320 Men in the Danish Young Men Study (DYMS): Cohort Profile and Trends

Andrology, EarlyView.
ABSTRACT Background Since the 1990s, declining sperm counts and increasing testicular cancer rates have raised worldwide concern about male reproductive health, including in Denmark. This prompted a prospective population‐based study with annual surveillance of semen quality.
Lærke Priskorn, Cille Baslund‐Storch, Laura S. Hansen, Astrid L. Beck, Ann H. Hansen, Stine A. Holmboe, Loa Nordkap, Anne Kirstine Bang, Rune Lindahl‐Jacobsen, Christine Dalgård, Anna‐Maria Andersson, Tina K. Jensen, Anders Juul, Niels Jørgensen   +13 more
wiley   +1 more source

Radioimmunoassay of tumor markers in clinical practice [PDF]

, 2007
Описаны теоретические основы радиоиммунологического анализа, проанализированы возможности использования радиоиммунологических исследований в клинической практике.
Щербина, О.В., Москалец, А.И.   +1 more
core   +1 more source

Radioimmunoassay for calcitonin.

Clinical Chemistry, 1982
Calcitonin (CT) is one of the most recently discovered calcium-regulating hormones; the first brief allusion to its existence appeared in 1961.1 The first assays for CT were based on its hypocalcemic property upon injection into rats.2,3 Radioimmunoassays for animal calcitonins soon followed, but the availability of sensitive radioimmunoassays for ...
H, Heath, G W, Sizemore
openaire   +2 more sources

Basal body temperature as a biomarker of reproductive state in ewes: A multi‐method comparison

Australian Veterinary Journal, EarlyView.
This study quantified body temperature dynamics throughout reproductive stages in crossbred ewes based on complementary monitoring techniques. Five ewes from a semi‐extensive farming system were included in two sub‐trials: animals were first assessed in the prepubertal stage and, subsequently, an oestrous cycle was induced by intravaginal progesterone ...
E Pérez‐García, J Nieto de la Losa, JA Abecia, J Plaza, C Palacios Riocerezo   +4 more
wiley   +1 more source

Adrenal venous sampling criteria for chemiluminescent enzyme immunoassay as a preferable alternative to radioimmunoassay in primary aldosteronism

Endocrine Journal
Plasma aldosterone concentration (PAC) was routinely measured using radioimmunoassay (RIA); however, the RIA kit was discontinued in March 2021 in Japan.
Kazuki Nakai, Yuya Tsurutani, Koki Irie, Kyoko Teruyama, Sachiko Suematsu, Seishi Matsui, Kohzoh Makita, Jun Saito, Masao Omura, Tetsuo Nishikawa   +9 more
doaj   +1 more source

Association of Angiotensin I Converting Enzyme Insertion/287 bp Deletion Polymorphisms and Proliferative Prostatic Diseases among Lebanese Men

Prostate Cancer, 2020
Background. Angiotensin I converting enzyme (ACE) insertion (I) and 287 bp Alu repeat DNA fragment deletion (D) polymorphisms have been indicated in various cancers.
Asmahan A. El Ezzi, Jordan M. Clawson, Mohammed A. El-Saidi, Wissam R. Zaidan, Abigail Kovash, Jeremy Orellana, AnnaKarina Thornock, Ruhul H. Kuddus   +7 more
doaj   +1 more source