pregnanolone has been researched along with Aging in 45 studies
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 7 (15.56) | 18.7374 |
| 1990's | 7 (15.56) | 18.2507 |
| 2000's | 16 (35.56) | 29.6817 |
| 2010's | 14 (31.11) | 24.3611 |
| 2020's | 1 (2.22) | 2.80 |
| Authors | Studies |
|---|---|
| Farley, JA; Logan, S; Owen, DB; Parks, EE; Sonntag, WE; Yeganeh, A | 1 |
| Bedin, R; Biagini, G; Giovannini, G; Lucchi, C; Meletti, S; Monti, G; Rustichelli, C; Trenti, T | 1 |
| Aoyama, B; Eguchi, S; Iwata, H; Kawano, T; Locatelli, FM; Nishigaki, A; Shigematsu-Locatelli, M; Tateiwa, H; Yamanaka, D; Yokoyama, M | 1 |
| Darbra, S; Llidó, A; Mòdol, L; Pallarès, M | 1 |
| Casarosa, E; Genazzani, AD; Genazzani, AR; Petignat, P; Pluchino, N; Santoro, A; Wenger, JM | 1 |
| Eckert, A; Grimm, A; Lang, UE; Mensah-Nyagan, AG; Schmitt, K | 1 |
| Belelli, D; Brown, AR; Herd, MB; Lambert, JJ | 1 |
| Bartolomé, I; Darbra, S; Llidó, A; Pallarès, M | 1 |
| Diaz-Granados, JL; Matthews, DB; Novier, A; Ornelas, LC | 1 |
| Afroz, S; Shen, H; Smith, SS | 1 |
| De Sarro, G; Dore, R; Maciocco, E; Mostallino, MC; Mura, ML; Pisu, MG; Russo, E; Serra, M | 1 |
| Darbra, S; Pallarès, M | 1 |
| Mares, P; Stehlíková, M | 1 |
| George, O; Le Moal, M; Mayo, W; Piazza, PV; Vallée, M; Vitiello, S | 1 |
| Berry, RB; Chin, VS; Diaz-Granados, J; Kirk, RE; Matthews, DB; Van Skike, CE | 1 |
| Brinton, RD; Chen, S; Henry, S; Irwin, RW; Liu, L; Singh, C; Thompson, RF; Wang, JM; Yao, J | 1 |
| Akwa, Y; Baulieu, EE; David, JP; Delacourte, A; Eychenne, B; Liere, P; Pianos, A; Sazdovitch, V; Schumacher, M; Weill-Engerer, S | 1 |
| Bancel, F; Dayanithi, G; Leng, G; Ludwig, M; Widmer, H | 1 |
| Gulinello, M; Smith, SS | 1 |
| Harrison, MB; Kapur, J; Mtchedlishvili, Z; Sun, CS | 1 |
| Bernardi, F; Casarosa, E; Genazzani, AD; Genazzani, AR; Luisi, M; Luisi, S; Palumbo, M; Puccetti, S; Stomati, M | 1 |
| Bernardi, F; Casarosa, E; Gabbanini, M; Genazzani, AD; Genazzani, AR; Luisi, M; Palumbo, M; Picciarelli, G; Pieri, M; Pluchino, N | 1 |
| George, O; Le Moal, M; Mayo, W; Vallée, M | 1 |
| Dudek, BC; Frye, CA; Harney, JP; Lydon, JP; O'Malley, BW; Pfaff, DW; Rhodes, ME; Sumida, K | 1 |
| Cerny, I; Havlíková, H; Hill, M; Kancheva, L; Kancheva, R; Pouzar, V; Stárka, L; Vrbíková, J | 1 |
| Brinton, RD; Wang, JM | 1 |
| Alexaki, VI; Castanas, E; Charalampopoulos, I; Dermitzaki, E; Gravanis, A; Lasaridis, I; Margioris, AN; Minas, V; Stournaras, C; Tsatsanis, C; Vardouli, L | 1 |
| Brinton, RD; Chen, S; Irwin, RW; Liu, L; Wang, JM | 1 |
| Matsumoto, K; Nagareda, T; Takeyama, M | 1 |
| Drayer, NM; Nagel, GT; van der Ploeg, KR; Volmer, M; Wolthers, BG | 1 |
| Beyer, C; Fernandez-Guasti, A; Gonzalez-Mariscal, G | 1 |
| Fries, U; Iglauer, F; Kunze, K; Stuerenburg, HJ | 1 |
| Borodinsky, LN; Fiszman, ML; Pesce, G; Pomata, P | 1 |
| Bernardi, F; Casarosa, E; Genazzani, AR; Lanzone, A; Luisi, S; Nappi, RE; Petraglia, F; Purdy, RH; Salvestroni, C | 1 |
| Cavarretta, I; Magnaghi, V; Martini, L; Melcangi, RC; Piva, F | 1 |
| Bernardi, F; Casarosa, E; Genazzani, AR; Luisi, M; Luisi, S; Nappi, RE; Palumbo, M; Petraglia, F; Purdy, RH; Salvestroni, C; Tonetti, A | 1 |
| Bovolin, P; Cavarretta, I; D'Urso, D; Magnaghi, V; Martini, L; Melcangi, RC; Zucchi, I | 1 |
| Bernardi, F; Bernasconi, S; Casarosa, E; Fadalti, M; Ferrari, E; Genazzani, AR; Luisi, M; Luisi, S; Petraglia, F; Saggese, G | 1 |
| Beart, PM; Crossley, KJ; Hirst, JJ; Walker, DW | 1 |
| Bernardi, F; Casarosa, E; Cobellis, L; Genazzani, AR; Luisi, M; Luisi, S; Monteleone, P; Petraglia, F; Stomati, M | 1 |
| Frisone, DF; Frye, CA; Zimmerberg, B | 1 |
| Baird, MB; Birnbaum, LS | 1 |
| Chang, MC; Lau, IF; Parkening, TA; Saksena, SK | 1 |
| Bäckström, T; Norberg, L; Wahlström, G | 1 |
| Mannan, MA; O'Shaughnessy, PJ | 1 |
6 review(s) available for pregnanolone and Aging
| Article | Year |
|---|---|
Advances in neurosteroids: role in clinical practice.
Topics: Affect; Aging; Behavior; Brain Injuries; Cognition; Dehydroepiandrosterone; Dehydroepiandrosterone Sulfate; Female; Humans; Male; Menopause; Neurotransmitter Agents; Postpartum Period; Pregnancy; Pregnanolone; Premenstrual Syndrome; Progesterone; Reproduction | 2013 |
Neurosteroids and cholinergic systems: implications for sleep and cognitive processes and potential role of age-related changes.
Topics: Acetylcholine; Aging; Animals; Brain Stem; Dehydroepiandrosterone Sulfate; Humans; Memory; Memory Disorders; Pregnanolone; Pregnenolone; Prosencephalon; Sleep; Sleep Wake Disorders | 2006 |
Therapeutic potential of neurogenesis for prevention and recovery from Alzheimer's disease: allopregnanolone as a proof of concept neurogenic agent.
Topics: Aging; Alzheimer Disease; Animals; Brain; Cell Differentiation; Mice; Mice, Transgenic; Nerve Regeneration; Neurons; Pregnanolone; Stem Cell Transplantation; Stem Cells | 2006 |
Neurosteroids as endogenous inhibitors of neuronal cell apoptosis in aging.
Topics: Aging; Animals; Apoptosis; Dehydroepiandrosterone; Humans; Neuroimmunomodulation; Neurons; Pregnanolone | 2006 |
Regenerative potential of allopregnanolone.
Topics: Aging; Alzheimer Disease; Animals; Brain; Humans; Nerve Regeneration; Pregnanolone | 2008 |
Clinical implications of circulating neurosteroids.
Topics: Aging; Alzheimer Disease; Dehydroepiandrosterone; Female; Humans; Male; Menopause; Menstrual Cycle; Pregnanolone | 2001 |
39 other study(ies) available for pregnanolone and Aging
| Article | Year |
|---|---|
Interleukin 6 reduces allopregnanolone synthesis in the brain and contributes to age-related cognitive decline in mice.
Topics: Aging; Animals; Brain; Cognition; Interleukin-6; Male; Mice; Pregnanolone | 2020 |
Low levels of progesterone and derivatives in cerebrospinal fluid of patients affected by status epilepticus.
Topics: 5-alpha-Dihydroprogesterone; Adolescent; Adult; Aged; Aged, 80 and over; Aging; Chromatography, High Pressure Liquid; Female; Humans; Male; Middle Aged; Pregnanolone; Pregnenolone; Progesterone; Retrospective Studies; Status Epilepticus; Steroids; Tandem Mass Spectrometry; Young Adult | 2018 |
Role of neurosteroid allopregnanolone on age-related differences in exercise-induced hypoalgesia in rats.
Topics: Aging; Animals; Behavior, Animal; Brain; Male; Pain; Pain Threshold; Physical Conditioning, Animal; Pregnanolone; Progesterone; Rats, Wistar; Reflex; Spinal Cord | 2019 |
Interaction between neonatal allopregnanolone administration and early maternal separation: effects on adolescent and adult behaviors in male rat.
Topics: Aging; Animals; Animals, Newborn; Anxiety; Anxiety, Separation; Body Weight; Exploratory Behavior; Gonadal Steroid Hormones; Male; Maternal Deprivation; Pregnanolone; Rats; Reflex, Startle | 2013 |
Improvement of neuronal bioenergetics by neurosteroids: implications for age-related neurodegenerative disorders.
Topics: Adenosine Triphosphate; Aging; Androstane-3,17-diol; Animals; Cell Line, Tumor; Cell Proliferation; Cells, Cultured; Dehydroepiandrosterone; Dose-Response Relationship, Drug; Energy Metabolism; Estradiol; Estrone; Humans; Membrane Potential, Mitochondrial; Mice; Mitochondria; Neurodegenerative Diseases; Neurons; Neurotransmitter Agents; Oxygen Consumption; Pregnanolone; Progesterone; Reactive Oxygen Species; Superoxide Dismutase; Testosterone | 2014 |
Developmentally regulated neurosteroid synthesis enhances GABAergic neurotransmission in mouse thalamocortical neurones.
Topics: 3-alpha-Hydroxysteroid Dehydrogenase (B-Specific); 5-alpha-Dihydroprogesterone; Aging; Animals; gamma-Aminobutyric Acid; In Vitro Techniques; Inhibitory Postsynaptic Potentials; Mice, Inbred C57BL; Mice, Knockout; Neurons; Pregnanolone; Receptors, GABA-A; Synaptic Transmission; Thalamus | 2015 |
Effects of neonatal allopregnanolone manipulations and early maternal separation on adult alcohol intake and monoamine levels in ventral striatum of male rats.
Topics: 5-alpha Reductase Inhibitors; Aging; Alcohol Drinking; Animals; Animals, Newborn; Biogenic Monoamines; Ethanol; Exploratory Behavior; Female; Hippocampus; Male; Maternal Deprivation; Pregnanolone; Rats; Rats, Wistar; Ventral Striatum | 2016 |
Differences in Behavioral Responding in Adult and Aged Rats Following Chronic Ethanol Exposure.
Topics: Aging; Animals; Ethanol; Male; Maze Learning; Motor Activity; Pregnanolone; Rats; Substance Withdrawal Syndrome | 2016 |
α4βδ GABA
Topics: Aging; Animals; CA1 Region, Hippocampal; Dendritic Spines; Female; GABA-A Receptor Agonists; Isoxazoles; Mice; Mice, Inbred C57BL; Neuronal Plasticity; Neurons; Pregnanolone; Receptors, GABA-A; Spatial Learning | 2017 |
Neuroactive steroids and GABAA receptor plasticity in the brain of the WAG/Rij rat, a model of absence epilepsy.
Topics: Aging; Animals; Animals, Genetically Modified; Brain; Brain Chemistry; Cerebral Cortex; Desoxycorticosterone; Disease Models, Animal; Down-Regulation; Epilepsy, Absence; gamma-Aminobutyric Acid; Male; Neuronal Plasticity; Pregnanolone; Protein Subunits; Rats; Rats, Wistar; Receptors, GABA-A; Steroids; Stress, Psychological; Synapses; Synaptic Transmission; Thalamus; Up-Regulation | 2008 |
Alterations in neonatal neurosteroids affect exploration during adolescence and prepulse inhibition in adulthood.
Topics: 5-alpha Reductase Inhibitors; Aging; Animals; Animals, Newborn; Anti-Anxiety Agents; Brain; Enzyme Inhibitors; Exploratory Behavior; Female; Finasteride; Male; Midazolam; Neural Inhibition; Neurotransmitter Agents; Pregnanolone; Rats; Rats, Wistar; Reflex, Startle; Sexual Maturation | 2010 |
Anticonvulsant doses of ganaxolone do not compromise motor performance in immature rats.
Topics: Aging; Animals; Anticonvulsants; Brain; Disease Models, Animal; Electric Stimulation; Epilepsy; Male; Motor Activity; Neuropsychological Tests; Pregnanolone; Rats; Rats, Wistar; Seizures; Time Factors | 2010 |
Low brain allopregnanolone levels mediate flattened circadian activity associated with memory impairments in aged rats.
Topics: Aging; Animals; Behavior, Animal; Brain; Disease Models, Animal; Indomethacin; Male; Memory Disorders; Pregnanolone; Rats; Rats, Sprague-Dawley; Sleep Disorders, Circadian Rhythm; Steroids | 2010 |
Effect of acute ethanol and acute allopregnanolone on spatial memory in adolescent and adult rats.
Topics: Aging; Animals; Ethanol; Hippocampus; Male; Maze Learning; Memory; Pregnanolone; Rats; Rats, Sprague-Dawley; Space Perception | 2011 |
Allopregnanolone restores hippocampal-dependent learning and memory and neural progenitor survival in aging 3xTgAD and nonTg mice.
Topics: Aging; Alzheimer Disease; Animals; Cell Survival; Hippocampus; Learning; Memory; Mice; Mice, Knockout; Neurons; Pregnanolone; Recovery of Function; Stem Cells; Treatment Outcome | 2012 |
Neurosteroid quantification in human brain regions: comparison between Alzheimer's and nondemented patients.
Topics: Aged; Aged, 80 and over; Aging; Alzheimer Disease; Amygdala; Amyloid beta-Peptides; Brain Chemistry; Cerebellum; Corpus Striatum; Dehydroepiandrosterone Sulfate; Female; Frontal Lobe; Gas Chromatography-Mass Spectrometry; Hippocampus; Humans; Hypothalamus; Male; Pregnanolone; Pregnenolone; Progesterone; Protein Structure, Secondary; Steroids; tau Proteins | 2002 |
Neurosteroid regulation of oxytocin and vasopressin release from the rat supraoptic nucleus.
Topics: Aging; Animals; Calcium; Dose-Response Relationship, Drug; Estradiol; Female; GABA Agonists; GABA Antagonists; Neurons; Neurotransmitter Agents; Oxytocin; Pituitary Gland, Posterior; Pregnanolone; Presynaptic Terminals; Progesterone; Rats; Rats, Wistar; Receptors, GABA-A; Sodium; Steroids; Supraoptic Nucleus; Vasopressins | 2003 |
Anxiogenic effects of neurosteroid exposure: sex differences and altered GABAA receptor pharmacology in adult rats.
Topics: Acoustic Stimulation; Aging; Animals; Anti-Anxiety Agents; Anxiety; Exploratory Behavior; Female; Flumazenil; GABA Modulators; Lorazepam; Male; Pregnanolone; Progesterone; Rats; Rats, Long-Evans; Receptors, GABA-A; Reflex, Startle; Sex Characteristics | 2003 |
Increased neurosteroid sensitivity of hippocampal GABAA receptors during postnatal development.
Topics: Aging; Animals; Animals, Newborn; Cell Membrane; Cells, Cultured; Dentate Gyrus; Dose-Response Relationship, Drug; Female; gamma-Aminobutyric Acid; Gene Expression Regulation, Developmental; Male; Membrane Potentials; Neural Inhibition; Neurons; Pregnanolone; Pregnenolone; Protein Subunits; Rats; Rats, Sprague-Dawley; Receptors, GABA-A; RNA, Messenger; Steroids; Up-Regulation | 2003 |
Conjugated equine estrogens reverse the effects of aging on central and peripheral allopregnanolone and beta-endorphin levels in female rats.
Topics: Adrenal Glands; Aging; Animals; beta-Endorphin; Brain; Dose-Response Relationship, Drug; Estrogens; Estrogens, Conjugated (USP); Estrus; Female; Hippocampus; Hypothalamus; Ovariectomy; Pituitary Gland; Pregnanolone; Rats; Rats, Wistar; Tissue Distribution | 2004 |
Tibolone, transdermal estradiol or oral estrogen-progestin therapies: effects on circulating allopregnanolone, cortisol and dehydroepiandrosterone levels.
Topics: Administration, Cutaneous; Adrenal Glands; Aging; Dehydroepiandrosterone; Estradiol; Estrogen Replacement Therapy; Estrogens; Estrogens, Conjugated (USP); Female; Humans; Hydrocortisone; Hysterectomy; Medroxyprogesterone Acetate; Middle Aged; Norethindrone; Norethindrone Acetate; Norpregnenes; Ovariectomy; Postmenopause; Pregnanolone; Progesterone; Progestins | 2005 |
Progesterone's effects to reduce anxiety behavior of aged mice do not require actions via intracellular progestin receptors.
Topics: Aging; Animals; Anxiety; Behavior, Animal; Conflict, Psychological; gamma-Aminobutyric Acid; Hippocampus; Mice; Mice, Knockout; Motor Activity; Motor Skills; Pregnanolone; Progesterone; Receptors, Progesterone | 2006 |
Serum profiles of free and conjugated neuroactive pregnanolone isomers in nonpregnant women of fertile age.
Topics: Adult; Aging; Dehydroepiandrosterone; Estradiol; Female; Follicular Phase; Gas Chromatography-Mass Spectrometry; Humans; Isomerism; Luteal Phase; Pregnanolone; Pregnenolone; Progesterone; Receptors, GABA-A | 2006 |
Deficiency of 5 alpha-steroid formation in guinea pig ovaries compared with immature rat and hamster ovaries.
Topics: Aging; Animals; Cricetinae; Female; Guinea Pigs; Mesocricetus; Ovary; Oxidoreductases; Pregnanes; Pregnanolone; Progesterone; Rats; Rats, Inbred Strains; Sexual Maturation; Species Specificity; Steroids | 1984 |
The diagnosis of 21-hydroxylase deficiency in a prematurely born infant on the basis of the urinary steroid excretion pattern.
Topics: Adrenal Hyperplasia, Congenital; Aging; Androstanes; Chromatography, Gas; Female; Gas Chromatography-Mass Spectrometry; Humans; Hydrocortisone; Infant, Newborn; Infant, Premature; Male; Pregnanes; Pregnanetriol; Pregnanolone; Pregnenes; Steroid Hydroxylases; Steroids; Tetrahydrocortisone | 1982 |
Anesthetic pregnanes counteract androgen-induced defeminization.
Topics: Aging; Anesthetics; Animals; Animals, Newborn; Anovulation; Female; Male; Pregnanediones; Pregnanes; Pregnanolone; Progesterone; Rats; Testosterone | 1982 |
Effect of age on synthesis of the GABAergic steroids 5-alpha-pregnane-3,20-dione and 5-alpha-pregnane-3-alpha-ol-20-one in rat cortex in vitro.
Topics: 3-alpha-Hydroxysteroid Dehydrogenase (B-Specific); 3-Hydroxysteroid Dehydrogenases; 5-alpha-Dihydroprogesterone; Aging; Animals; Buffers; Cerebral Cortex; Female; gamma-Aminobutyric Acid; Male; Oxidoreductases; Pregnanediones; Pregnanolone; Rats; Rats, Inbred Strains | 1997 |
Neurosteroid modulation of GABAA receptors in the developing rat brain cortex.
Topics: Aging; Animals; Animals, Newborn; Cerebral Cortex; Embryo, Mammalian; Embryonic and Fetal Development; Muscimol; Pregnanolone; Rats; Rats, Wistar; Receptors, GABA-A; Steroids | 1997 |
Aging is associated with changes in allopregnanolone concentrations in brain, endocrine glands and serum in male rats.
Topics: Adrenal Glands; Aging; Animals; Brain Chemistry; Cerebral Cortex; Cohort Studies; Corticosterone; Cross Reactions; Endocrine Glands; Hypothalamus; Immune Sera; Male; Pituitary Gland; Pregnanolone; Radioimmunoassay; Rats; Rats, Wistar; Sheep; Testis; Testosterone | 1998 |
Age-induced decrease of glycoprotein Po and myelin basic protein gene expression in the rat sciatic nerve. Repair by steroid derivatives.
Topics: 20-alpha-Dihydroprogesterone; Aging; Animals; Animals, Newborn; Blotting, Northern; Cells, Cultured; Gene Expression Regulation; Male; Myelin Basic Protein; Myelin P0 Protein; Oligodendroglia; Pregnanolone; Rats; Rats, Sprague-Dawley; Schwann Cells; Sciatic Nerve | 1998 |
Circulating levels of allopregnanolone in humans: gender, age, and endocrine influences.
Topics: Adrenal Cortex; Adrenocorticotropic Hormone; Adult; Aged; Aging; Corticotropin-Releasing Hormone; Dehydroepiandrosterone; Female; Follicular Phase; Gonadotropin-Releasing Hormone; Humans; Luteal Phase; Male; Menopause; Menstruation; Middle Aged; Ovary; Pregnanolone; Progesterone; Sex Characteristics | 1998 |
Progesterone derivatives are able to influence peripheral myelin protein 22 and P0 gene expression: possible mechanisms of action.
Topics: 20-alpha-Dihydroprogesterone; Aging; Animals; Blotting, Northern; Cells, Cultured; Gene Expression Regulation; Male; Myelin P0 Protein; Myelin Proteins; Pregnanolone; Progesterone; Rats; Rats, Sprague-Dawley; Receptors, GABA-A; Receptors, Progesterone; Reverse Transcriptase Polymerase Chain Reaction; RNA, Messenger; Schwann Cells; Sciatic Nerve | 1999 |
Changes of serum allopregnanolone levels in the first 2 years of life and during pubertal development.
Topics: Adolescent; Aging; Child; Female; Humans; Hypothalamo-Hypophyseal System; Infant; Male; Pregnanolone; Puberty | 1999 |
Characterisation of GABA(A) receptors in fetal, neonatal and adult ovine brain: region and age related changes and the effects of allopregnanolone.
Topics: Aging; Animals; Animals, Newborn; Binding, Competitive; Brain; Brain Stem; Bridged Bicyclo Compounds, Heterocyclic; Dose-Response Relationship, Drug; Female; Fetus; Frontal Lobe; GABA Antagonists; gamma-Aminobutyric Acid; Hypothalamus; Male; Picrotoxin; Pregnancy; Pregnanolone; Receptors, GABA-A; Sheep; Sulfur Radioisotopes | 2000 |
Social isolation stress during the third week of life has age-dependent effects on spatial learning in rats.
Topics: Aging; Animals; Body Weight; Female; Hydrocortisone; Male; Maze Learning; Memory, Short-Term; Pregnanolone; Rats; Rats, Long-Evans; Social Isolation; Stress, Psychological | 2002 |
Induction of hepatic mixed function oxidases in senescent rodents.
Topics: Aging; Animals; Benzopyrene Hydroxylase; Benzphetamine; Biotransformation; Cytochrome P-450 Enzyme System; Cytochromes; Enzyme Induction; Ethylmorphine-N-Demethylase; Liver; Male; Methylcholanthrene; Microsomes, Liver; NADPH-Ferrihemoprotein Reductase; Oxidoreductases; Phenobarbital; Pregnanolone; Rats | 1978 |
Circulating plasma levels of pregnenolone, progesterone, estrogen, luteinizing hormone, and follicle stimulating hormone in young and aged C57BL/6 mice during various stages of pregnancy.
Topics: Aging; Animals; Embryo Implantation; Estrogens; Female; Follicle Stimulating Hormone; Gonadotropins; Humans; Litter Size; Luteinizing Hormone; Maternal Age; Mice; Mice, Inbred C57BL; Pregnancy; Pregnancy, Animal; Pregnanolone; Steroids; Time Factors | 1978 |
The anaesthetic potency of 3 alpha-hydroxy-5 alpha-pregnan-20-one and 3 alpha-hydroxy-5 beta-pregnan-20-one determined with an intravenous EEG-threshold method in male rats.
Topics: Aging; Anesthesia, Intravenous; Anesthetics; Animals; Dose-Response Relationship, Drug; Electroencephalography; Male; Pregnanes; Pregnanolone; Rats | 1987 |
Ovarian steroid metabolism during post-natal development in the normal mouse and in the adult hypogonadal (hpg) mouse.
Topics: 20-alpha-Dihydroprogesterone; 3-Oxo-5-alpha-Steroid 4-Dehydrogenase; Aging; Androstenedione; Animals; Female; Hypogonadism; Mice; Mice, Inbred Strains; Mice, Mutant Strains; Ovary; Pregnanolone; Progesterone | 1988 |