reproductive

Propoxur (Propoxure) is an insecticide used to control cockroaches, flies, mosquitoes, and lawn and turf insects. Acute (short-term) exposure of humans to propoxur by ingestion leads to cholinesterase inhibition of red blood cells, with mild cholinergic symptoms including blurred vision, nausea, vomiting, sweating, and tachycardia; however, the effects are transient. Chronic (long-term) inhalation exposure has resulted in depressed cholinesterase levels, headaches, vomiting, and nausea in humans. Chronic ingestion studies in animals have reported depressed cholinesterase levels, depressed body weight, effects to the liver and bladder, and a slight increase in neuropathy. No information is available on the reproductive, developmental, or carcinogenic effects of propoxur in humans. Mixed results are available from cancer studies of propoxur in animals. EPA has not classified propoxur for carcinogenicity.

Ulipristal acetate (CDB-2914) is an orally bioavailable, acetate salt of ulipristal, a selective progesterone receptor modulator with anti-progesterone activity. Ulipristal binds to the progesterone receptor (PR), thereby inhibiting PR-mediated gene expression, and interfering with progesterone activity in the reproductive system. As a result, this agent may suppress the growth of uterine leiomyomatosis. Furthermore, by inhibiting or delaying ovulation and effecting endometrial tissue, ulipristal can be used as an emergency contraception.

Bisphenol A is an endogenous metabolic compound of phenols and is widely used in the production of epoxy resins and polycarbonate plastics. It is reproductive, developmental and systemic toxicant and is often classified as an endocrine disruptor. It has been linked to many diseases, including respiratory disease, cardiovascular disease, diabetes, kidney disease, obesity and reproductive disorders.

LH-RH, salmon acetate(86073-88-3 free base) (Luteinizing Hormone Releasing Hormone (LH-RH), salmon acetate) is a pituitary Hormone synthesized in the hypothalamus and plays a crucial role in the control of reproductive function.

Flucycloxuron ((E)-flucycloxuron) is a chitin synthesis inhibitor used as a pesticide. In insect models, the inhibitor has been shown to affect several reproductive events such as the duration of preovipostion.

Proguanil hydrochloride (Chloroquanil) is a biguanide compound which metabolizes in the body to form cycloguanil, an anti-malaria agent.Upon hydrolysis, Proguanil hydrochloride is converted to its active cyclic triazine metabolite, cycloguanil, by a cytochrome P450 dependent reaction. Cycloguanil selectively inhibits the bifunctional dihydrofolate reductase-thymidylate synthase of plasmodium parasite, thereby disrupting deoxythymidylate synthesis and ultimately blocking DNA and protein synthesis in the parasite.

2-Bromobiphenyl is a persistent organic pollutant (POP) found primarily in soil and water. It is a known human carcinogen and has been linked to a variety of health effects including reproductive and developmental toxicity.

16a,17a-Epoxy-4-Pregnen-3,20-Dione is a synthetic progestin, a metabolite of the luteinizing hormone hormone, which acts by binding to the luteinizing hormone receptor. It has been used to study the effects of progesterone on reproductive organs, the effects of the hormone on cell growth and development, and the effects of the hormone on the immune system.

Gonadorelin Acetate (33515-09-2 free base) (Luteinizing Hormone Releasing Hormone (LH-RH)) is hypothalamic neuropeptide which plays a key role in the control of reproductive functions.

[Gln8]-C517 (LH-RH), chicken acetate is an avian hypothalamic peptide that stimulates release of gonadotropins from anterior pituitary, thus regulating reproductive functions.

Benzoylaconine (Isaconitine) is an alkaloid in the Chinese traditional medicine Radix Aconiti Lateralis Preparata (Fuzi). Benzoylaconine and aconitine can induce reproductive toxicity in BeWo Cell, the amino acid metabolism was the main metabolic pathway and responsible for the placental and fetal toxicity of them.

[Gln8] Luteinizing hormone releasing hormone ([Gln8] LH-RH), Avian hypothalamic peptide that stimulates release of gonadotropins from anterior pituitary, thus regulating reproductive functions.

Polystyrene microplastics (PS-MPs) are a toxic substance that poses risks to aquatic life, specifically causing cardiac harm to zebrafish and inducing male reproductive toxicity in mice [1] [2].

Cloprostenol is a synthetic derivative of prostaglandin F2α that is used in veterinary medicine as a luteolytic agent for the induction of estrus and in the treatment of reproductive disorders in cattle, swine, and horses. (+)-5-trans Cloprostenol is a minor impurity produced in the synthesis of (+)-cloprostenol. The (+)-5-trans isomer is 20-fold less active than the 5-cis form in terminating pregnancy in the hamster.

Follicle-stimulating hormone (FSH), a heterodimeric glycoprotein synthesized by gonadotrophs in the anterior pituitary gland, influences animal fertility and reproductive performance [1] [2].

Hippadine is isolated from Crinum bulbs and has reproductive effect.

Dimethyl phthalate (Fermine) has many uses, including in solid rocket propellants, plastics, and insect repellants. Acute (short-term) exposure to dimethyl phthalate, via inhalation in humans and animals, results in irritation of the eyes, nose, and throat. No information is available on the chronic (long-term), reproductive, developmental, or carcinogenic effects of dimethyl phthalate in humans. Animal studies have reported slight effects on growth and on the kidney from chronic oral exposure to the chemical. EPA has classified dimethyl phthalate as a Group D, not classifiable as to human carcinogenicity.

Human β-defensin-1 (HβD-1) is a cysteine-rich cationic skin-antimicrobial peptide (SAP) produced by epithelial surfaces, circulatory cells, and cells of the reproductive tract. It exhibits antimicrobial activity against a wide range of sperm bacteria.

Luteinizing hormone (LH), a heterodimeric glycoprotein hormone synthesized by the pituitary gland, serves vital functions in human reproductive processes.

Luteinizing Hormone Releasing Hormone (LH-RH) is a pituitary Hormone synthesized in the hypothalamus and plays a crucial role in the control of reproductive function.

Erlosiban, also known as OBE001, is a novel, orally active nonpeptide oxytocin receptor antagonist under development for the treatment of preterm labor and improvement in embryo implantation and pregnancy rate in assisted reproductive technology (ART).

Phoenixin-20 (TFA) (PNX-20 (TFA)) is a bioactive peptide that exerts hormone-like effects in vertebrates, stimulating hypothalamo-pituitary-gonadal hormones and regulating mammalian reproductive processes. Additionally, it enhances neuronal mitochondrial biogenesis through the CREB-PGC-1α pathway and exhibits anxiolytic properties [1] [2] [3].

Ethynylestradiol mixture with lynestrenol is a drug/ therapeutic agent with reproductive effect.

(D-Ser4, D-Ser(tBu)6, Azagly10)-LHRH, an analogue of luteinizing hormone-releasing hormone (LHRH), plays a pivotal role in reproductive regulation by promoting the secretion of pituitary luteinizing hormone (LH) and follicle-stimulating hormone (FSH) [1].

Elinzanetant is a dual antagonist of neurokinin (NK) receptors 1 and 3 and modulates reproductive hormone secretion.

(+)-Cloprostenol is a synthetic analog of prostaglandin F2α (PGF2α). It is an FP receptor agonist and a potent luteolytic agent in rats and hamsters. It is 200 times and 100 times more potent than PGF2α in terminating pregnancy in hamsters and rats, respectively, without the side effects associated with PGF2α. Cloprostenol is also used in veterinary medicine as a luteolytic agent for the induction of estrus and the treatment of reproductive disorders in cattle, swine, and horses. (+)-Cloprostenol methyl ester is a more lipid soluble form of cloprostenol, which may be more amenable for certain formulations.

(+)-Cevimeline hydrochloride hemihydrate ((+)-SNI-2011), a potent muscarinic receptor agonist, stands as a promising therapeutic candidate for treating xerostomia in Sjogren's syndrome. This compound has demonstrated a broad pharmacological profile across various systems including gastrointestinal, urinary, and reproductive, in animal models such as mice, rats, guinea pigs, rabbits, and dogs. Its metabolism was assessed in vitro using rat and dog liver microsomes, revealing that (+)-SNI-2011 is rapidly absorbed with peak plasma concentrations (Cmax) reached within one hour post-oral administration, followed by a decline with a half-life (t1/2) ranging from 0.4 to 1.1 hours. Bioavailability was recorded at 50% in rats and 30% in dogs. Metabolic analysis indicated species-specific differences, with rats producing both S- and N-oxidized metabolites and dogs only producing N-oxidized metabolites. Additionally, sex-based differences in pharmacokinetics were observed in rats but not in dogs. The in vitro study highlighted the involvement of cytochrome P450 (CYP) and flavin-containing monooxygenase (FMO) in the sulfoxidation and N-oxidation of SNI-2011, respectively, with CYP2D and CYP3A being primarily responsible for sulfoxidation in rat liver microsomes.

Flavokawain 1i, a derivative of chalcones flavokawain A, flavokawain B, and flavokawain C, exhibits anticancer and antiviral properties. At a concentration of 30 µM, it suppresses the growth of gefitinib-resistant H1975 non-small cell lung cancer (NSCLC) cells by 36% and modulates the protein expression by reducing the levels of heat shock protein 90 (Hsp90) client proteins, including EGFR, c-Met, HER2, Akt, and cyclin-dependent kinase 4 (Cdk4), while increasing the levels of Hsp70, indicative of Hsp90 inhibition. Additionally, intramuscular injection of flavokawain 1i lowers viral loads in pigs afflicted with porcine reproductive and respiratory syndrome virus (PRRSV).

Xylamidine tosylate is a Serotonin inhibitor with reproductive effects

Hydroxyprogesterone caproate (Delalutin) is a synthetic progestational agent. It binds to and activates nuclear progesterone receptors in the reproductive system and inhibits ovulation and an alteration in the cervical mucus and endometrium.

RET-IN-9 is a potent inhibitor of RET. RET kinase is a single-channel transmembrane receptor tyrosine kinase that plays an important role in the development of the kidney and enteric nervous system, as well as in the maintenance of homeostasis in the nervous, endocrine, hematopoietic and male reproductive systems. RET-IN-9 has the potential for the study of RET-related diseases, including non-small cell lung cancer and medullary thyroid cancer.

Isocupressic acid induces abortion in pregnant cows when ingested primarily during the last trimester, it decrease affects the angiogenesis of the female reproductive system, the decrease in blood flow and apoptosis of corpus luteum-derived endothelial ce

Atrazine mercapturate is a major, glutathione-derived metabolite of atrazine , an herbicide that is effective in controlling a broad range of weeds. Atrazine has been reported to cause cancer in certain laboratory animals, have diverse effects on the reproductive system in animals and humans, and disrupt the normal function of the endocrine system. Atrazine mercapturate is readily measured in urine samples.

Vasicine is oxytocic and abortifacient agents.Vasicine, a potential natural cholinesterase inhibitor, has been in development for treatment of Alzheimer's disease. Vasicine can regulate the inflammatory reaction, have great potentials to develop safe medi

3-Hydroxycoumarin is a natural compound, and is human 15-LOX-1 inhibitors

5α-Androst-16-en-3-one, a mammalian pheromone present in boar saliva, plays a crucial role in facilitating social and sexual interactions by acting as a volatile chemical cue. It is utilized to prime sows in estrus for mating or artificial insemination, underscoring its significance in reproductive behavior. Additionally, this compound is detected in human sweat and urine, where it is involved in studies concerning receptor-mediated odorant detection and the genetic foundations of anosmias, thereby broadening its scope of relevance beyond the animal kingdom.

5α-Androstan-3β-ol, a steroidal androgen, demonstrates selective interaction with cellular components, showing affinity for the androgen receptor (AR) with an IC50 of 1.7 µM and activating the pregnane X receptor (PXR) in HepG2 cells with an EC50 of 0.8 µM. It selectively inhibits the hydroxylase activities of 16α- and 6β-hydroxylase over 16β- or 7α-hydroxylase, with IC50 values of 70 and 110 µM, compared to >150 µM for the latter enzymes, indicating a specificity in its enzyme inhibition profile. Additionally, administration of this compound at a dosage of 30 mg/kg results in a decrease in testis weight and sperm production in mice, highlighting its biological effects on male reproductive parameters.

PRRSV/CD163-IN-1, a PRRSV/CD163 inhibitor, effectively blocks the interaction between the PRRSV glycoproteins (GP2a or GP4) and the CD163-SRCR5 domain, making it a valuable tool for porcine reproductive and respiratory syndrome (PRRS) research.

(D-Ser(tBu)6,D-Leu7,Azagly10)-LHRH, an analogue of the luteinizing hormone-releasing hormone (LHRH), fundamentally mediates reproductive processes by promoting the secretion of pituitary luteinizing hormone (LH) and follicle-stimulating hormone (FSH) [1].

(D-Tyr5,D-Ser(tBu)6,Azagly10)-LHRH, an analogue of luteinizing hormone-releasing hormone (LHRH), plays a pivotal role in reproductive control by promoting the pituitary release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) [1].

17α-Hydroxyprogesterone (17-OHP) is a physiological progestin that is produced during glucocorticoid and steroid hormone synthesis and is increased during the third trimester of pregnancy. Hydroxyprogesterone binds to the cytoplasmic progesterone receptors in the reproductive system and subsequently activates progesterone receptor-mediated gene expression.

Beta-Zearalenol, a derivative of zearalenone (ZEA) capable of conjugating with glucuronic acid[2], is a mycotoxin produced by Fusarium spp. It induces apoptosis and oxidative stress in mammalian reproductive cells[1].

Fluphenazine decanoate is dopamine D2 receptor blocke,and is a long-acting phenothiazine neuroleptic that used to treat schizophrenia.

Kisspeptin-10, rat TFA serves as both a potent vasoconstrictor and an inhibitor of angiogenesis, as well as acting as a ligand for the rodent kisspeptin receptor (KISS1, GPR54). Additionally, Kisspeptin-10 TFA demonstrates potential antioxidant properties by reducing Methotrexate-induced reproductive toxicity [1].

Cevimeline hydrochloride hemihydrate ((-)-SNI-2011), a novel muscarinic receptor agonist, is being explored as a potential treatment for xerostomia in Sjogren's syndrome, exhibiting an IC50 value indicative of its affinity for mAChR. This compound's pharmacological effects on the gastrointestinal, urinary, and reproductive systems, alongside its impact on various tissues, were thoroughly examined in species including mice, rats, guinea pigs, rabbits, and dogs. The metabolic breakdown of (-)-SNI-2011 was studied in vitro using rat and dog liver microsomes to assess its biotransformation. Upon oral administration, peak plasma concentrations were reached within an hour in both rats and dogs, showcasing rapid absorption and a subsequent decrease in concentration with a half-life ranging from 0.4 to 1.1 hours. Bioavailability was noted at 50% in rats and 30% in dogs. Metabolic pathways highlighted significant species differences, with both S- and N-oxidized metabolites identified in rats, but only N-oxidized metabolites in dogs. Additionally, gender differences in pharmacokinetics were observed in rats but were absent in dogs. In vitro studies pinpointed the involvement of cytochrome P450 (CYP) and flavin-containing monooxygenase (FMO) in the metabolism of (-)-SNI-2011, specifically through sulfoxidation and N-oxidation processes, respectively. CYP2D and CYP3A were identified as the primary enzymes responsible for sulfoxidation in rat liver microsomes.

Acetamiprid is a nicotinic acetylcholine receptor (nAChR) agonist. Acetamiprid is a neonicotinoid insecticide used worldwide. It is shown to be associated with neuromuscular and reproductive disorders.

6-Methylene-4-pregnene-3,20-dione has reproductive effect.

Lepidiline A (Macaline A) is a flavonoid lignin with anti-inflammatory activity. Lepidiline A showed cytotoxic activity against HL-60 cells with IC50 of 32.3 μM. It is the active ingredient of Lepidium meyenii Walpers, a plant in the brassica family, and improves the balance of endogenous sex hormones in mice and the fectility of fruit flies. Lepidiline A targets HSD17B1 gene to enhance enzyme activity, improve the efficiency of sex hormone bioconversion, and improve reproductive ability. Lepidiline A has anticancer activity.

Nivalenol is a fungal metabolite produced by Fusarium graminearum. Nivalenol induces cell death through caspase and intrinsic apoptotic pathways thus affecting the immune system and causing emesis, growth retardation, and reproductive disorders.