Effects of Cnidium monnieri (L.) Cuss. fruit extract on sexual behaviors in male rats

Background Cnidium monnieri (L.) Cuss. has been used for a long time according to the traditional experiences and documentation in order to treat male sexual disorders. Osthole is one of the main bioactive components in Cnidium monnieri (L.) Cuss. In this study, we aimed to evaluate the effect of Cnidium monnieri (L.) Cuss. fruit extract of which osthole content was 35% (determined by HPLC method) on sexual behaviors in adult male rats. Methods Cnidium monnieri (L.) Cuss. fruit extract was administered orally at the dose of 150 mg/kg b.w and after 30 min, male rats were coupled with receptive adult female rats to evaluate sexual behaviors, including mounting and intromission. Results Cnidium monnieri (L.) Cuss. fruit extract at the dose of 150 mg/kg b.w increased the percentage of rats that mounted and intromitted; increased the intromission frequency and decreased mounting latency and intromission latency. Conclusion Cnidium monnieri (L.) Cuss. fruit extract increased the ability to mount and intromit in rats, and scientifically support the traditional use of Cnidium monnieri (L.) Cuss. in treatment of male sexual disorders.

Evaluation of Moringa oleifera (L) Aqueous Seed Extracts on Aphrodisiac, ‎Gonadal and Epididymal Sperm Reserves of Wistar Rats

This study was designed to evaluate the effects of Moringa oleifera (L) aqueous seed extract on aphrodisiac, gonadal and epididymal sperm reserves of Wistar rats. Twenty-five male and fifteen female Wistar rats aged two months weighing 150 – 200 g were purchased and housed in cages at the Faculty of Pharmaceutical Science, Ahmadu Bello University Zaria. The Wistar rats were provided with a 12 hours light and dark cycle, fed with pellets of broiler starter and drinking water were provided ad libitum. The rats were acclimatized for 14 days and they were randomly divided into 5 groups A, B, C, D and E. Group B, C and D as treatment groups, whereas, group A and E were negative and positive controls, respectively, with 5 rats in each group and each was kept singly in separate cage. Groups A and E received 1 ml of distilled water and 5 mg of sildenafil citrate orally respectively. Groups B, C and D received suspension of Moringa oleifera aqueous seed extract orally at the dose rate 100, 200 and 300 mg/kg respectively, between 9:00 - 10:00 am daily for 21 days. Female rats were paired with males at a ratio of 1:1, and mating behaviour recorded. Group C and E male rats showed a significant (p < 0.05) increase in mounting frequency (MF), respectively. Intromission frequency (IF) was significantly (p < 0.05) increased in group C and E, respectively. Gonadal and epididymal sperm reserves were significantlydifferent (p < 0.05)between the M. oleifera treated and control groups.

Evaluation of Preclinical Aphrodisiac Activity of Flueggea leucopyrus Willd. Leaves

Background: Flueggea leucopyrus Willd. leaf has been used since ancient time for its sex enhancing activity by traditional physicians. So, the work was chosen to authenticate the knowledge of pharmaceutical significance of the plant. Methods: The dried leaves of Flueggea leucopyrus were extracted by cold maceration method using water. Aqueous extract of Flueggea leucopyrus leaf was screened for phytochemicals and in vivo aphrodisiac activity using mating behavior, potency and morphological tests. Results: Qualitative phytochemical analysis of leaves of Flueggea leucopyrus showed the presence of alkaloids, terpenoids, unsaturated sterols, glycosides, saponins, phenolics, flavonoids, tannins, carbohydrates and protein. Results revealed that all the treated groups on the 15th, 30th and 45th day of treatment showed significant increase in Intromission Frequency, Mounting Frequency and Ejaculatory Latency significant decrease in Intromission Latency, Mounting Latency, Inter Intromission Interval and Post Ejaculatory Interval. In Test for Potency significant increase in Erections, Long Flips and Quick Flips were observed. Morphological study showed significant increase in reproductive organs weight and Sperm Count in all the experimental animals. Conclusion: The prolonged treatments for all the treated groups were highly effective to increase the sexual libidity, as compared to the solvent control. This indicates that aphrodisiac activity has been shown by water extract but it is less than the standard used for study.

Sexual stimulant effects of the mixture of Mondia whitei, Dracaena arborea, and Bridelia ferruginea in normal and prediabetic male Wistar rats

Background We investigated the effects of a polyherbal formulation prepared from the extracts of Mondia whitei (Periplocaceae), Dracaena arborea (Dracaenaceae), and Bridelia ferruginea (Euphorbiaceae) (MDB) on the sexual behavior of normal rats (NR) and prediabetic rats (PR). Methods Male Wistar rats were administered with drinking fructose solution (21%) or tap water for 16 weeks. After induction of prediabetic status, NR (n = 30) and PR (n = 30) were randomly distributed into 10 groups of six animals each and orally treated with distilled water (10 mL/kg), sildenafil citrate (5 mg/kg), or MDB (50, 100, or 500 mg/kg) for 21 days. Sexual behavior parameters per series (S) of ejaculation were evaluated on days 1, 7, 14, and 21. Results Drinking fructose solution (21%) induced prediabetic status in rats, characterized by a significant (p < 0.01) increase in glycemia by 43.41% compared with the control group. MDB improved sexual performances of NR and PR by increasing the mount frequency (MF) and the intromission frequency (IF) as well as the number of rats capable of ejaculating. For instance, the MF and the IF were significantly increased in animals administered with MDB for 7 (50 mg/kg, S1 and S2), 14 (100 mg/kg, S3), or 21 days (100 or 500 mg/kg, S2). This increase was more pronounced on days 7 and 14 in NR and PR treated with sildenafil citrate or MDB extracts, respectively. Conclusions The mixture of MDB improved sexual activity in NR and PR. This result may further justify the traditional use of these plants as sexual performance enhancers.

STUDY ON APHRODISIAC ACTIVITY OF OLEA DIOICA ROXB. BARK, LEAF EXTRACTS, AND ITS PURE COMPOUND USING WISTAR ALBINO RATS

Objectives: We aimed to assess the effects of O. dioica Roxb. leaf and bark extract and its isolated constituent benzeneethanol, 4-hydroxy- on aphrodisiac activity in rats using different standard aphrodisiac parameters.Methods: To determine the aphrodisiac activity several parameters were observed. These include measuring and observing the mount frequency (MF), mount latency (ML), intromission frequency (IF), intromission latency (IL), anogenital sniffing (AS), and genital grooming (GG).Results: The aphrodisiac activity of O. dioica Roxb. leaf and bark extracts and its pure compound were studied on Wistar albino rats at different dosages. The parameters observed during the study were MF, ML, IF, IL, AS, and GG. The results revealed that the crude extracts showed dose-dependent activity in all the concentration, in that, ethanolic leaf extract showed excellent activity compared to ethanolic bark extract and pure compound benzene ethanol 4-hydroxy.Conclusion: Results showed the excellent aphrodisiac activity of O. dioica Roxb. leaf and bark ethanolic extracts. However, the major compound benzeneethanol, 4-hydroxy- was not responsible for the aphrodisiac activity, may be the minor compounds even though in minor concentration in the extract influence the sexual activity in tested animals.

Screening of Antidiabetic Activity of Extract and Fraction of Biophytum sensitivum in Rats Using STZ-Nicotinamide Induced Diabetes Model

The study was aimed at investigate the effect of methanolic extract of Phaseolus semierectus(L.) (Leguminosae) on general mating behaviour, libido, and adverse effects on sexually normal male albino rats. Methanolic extract was administered orally at the dose of 100, 200, and 400 mg / kg, to different groups of male rats (n = 8) once a day for 14 days. All the doses resulted in significant increase in mount frequency, intromission frequency and anogenital sniffing when compared to normal. The methanolic extract of Phaseolus semierectus (L.) seeds at higher concentration (400 mg/kg body weight) showed significant aphrodisiac activity on male Wister albino rats as evidenced by an increase in number of mounts and mating performance. Thus, in experimental rats, the results of the present study suggest that the methanolic extracts of Phaseolus semierectus (L.) exert significant aphrodisiac activity.

Changes in Sexual Behavior of Orchidectomized Rats under Influence of Allotransplantation of Testicular Interstitial Cell Suspension

Transplantation of hormone-producing cells is an experimental endocrine dysfunction treatment. The present study investigated the effects of orchidectomy (OE) and transplantation of interstitial cell suspension (ICS) on rat sexual behavior. Adult experimental animals were divided into two populations. One of these populations had sexual experience before the experiment and the other did not. Each population was divided into three groups: control group and two orchidectomized groups. One of the orchidectomized groups was treated with ICS, and the other was treated with the vehicle. The changes in the sexual behavior were investigated on the following parameters: mount latency (ML), intromission latency (IL), ejaculation latency (EL), mount frequency (MF), intromission frequency (IF), copulatory efficacy (CE), and IF/EL ratio. The investigation of these changes lasted 4 weeks after ICS transplantation. The parameters of sexual behavior reflected a decrease in sexual function after OE at the beginning of the observation, especially for the animals that did not have a sexual experience. However, it was shown that sexual activity increased in the following 4 weeks. We have indicated that the loss of gonads attenuated the capacity to acquire sexual experience; nonetheless, it did not mean that the animals completely lost this capacity. Transplantation of ICS facilitated the maintenance of male sexual behavior after OE, fractionally enlarged the size of regressed seminal vesicles of the animals, and increased the free testosterone (T) level. These findings suggest the ICS can be considered as a temporal source of androgens, which can facilitate a restoration of sexual activity.

Evaluation of Aphrodisiac Activity of Phaseolus semierectus (L.)Seeds

The study was aimed at investigate the effect of methanolic extract of Phaseolus semierectus(L.) (Leguminosae) on general mating behaviour, libido, and adverse effects on sexually normal male albino rats. Methanolic extract was administered orally at the dose of 100, 200, and 400 mg / kg, to different groups of male rats (n = 8) once a day for 14 days. All the doses resulted in significant increase in mount frequency, intromission frequency and anogenital sniffing when compared to normal. The methanolic extract of Phaseolus semierectus (L.) seeds at higher concentration (400 mg/kg body weight) showed significant aphrodisiac activity on male Wister albino rats as evidenced by an increase in number of mounts and mating performance. Thus, in experimental rats, the results of the present study suggest that the methanolic extracts of Phaseolus semierectus (L.) exert significant aphrodisiac activity.

Evaluation of Aphrodisiac Activity of Buchanania axillaris (Linn.) Leaves

The study was aimed at investigate the effect of methanolic extract of Buchanania axillaris linn. (Anacardiaceae) on general mating behaviour, libido, and adverse effects on sexually normal male albino rats. Methanolic extract was administered orally at the dose of 100, 200, and 400 mg / kg, to different groups of male rats (n = 8) once a day for 14 days. All the doses resulted in significant increase in mount frequency, intromission frequency and anogenital sniffing when compared to normal. The methanolic extract of Buchanania axillaris leaves at higher concentration (400 mg/kg body weight) showed significant aphrodisiac activity on male Wister albino rats as evidenced by an increase in number of mounts and mating performance. Thus, in experimental rats, the results of the present study suggest that the methanolic extracts of Buchanania axillaris exert significant aphrodisiac activity

Potent Phosphodiesterase Inhibition and Nitric Oxide Release Stimulation of Anti-Impotence Thai Medicinal Plants from “MANOSROI III” Database

Seven plants in the top rank were selected from the “MANOSROI III” database using the two Thai keywords which meant impotence and sexual tonic. Boesenbergia rotunda (L.) Mansf. extract [EDP1-001(1)] gave the highest PDE inhibition activity of 4.36-fold sildenafil, a standard anti-impotence drug. Plumbago indica Linn. extract [EDP2-001(1)] exhibited the highest NO release stimulation activity of 666.85% which was 1.50-fold acetylcholine, a standard drug. Most selected plant extracts were nontoxic to EA.hy926 cells at 1.0 mg/mL. EDP1-001(1) exhibited the LD50 value of acute oral toxicity in male ICR mice of over 5,000 mg/kg body weight. EDP1-001(1) also indicated the improvement of sexual behaviors in the paroxetine-induced sexual dysfunction male mice with the evaluation of number of courtships (NC), mount frequency (MF), intromission frequency (IF), and ejaculatory frequency (EF) at 87.67±6.17, 121.00±23.50, 36.00±3.21, and 13.67±2.96 which were 2.63-, 1.27-, 0.53-, and 0.62-fold sildenafil-treated mice at day 14 of the treatments, respectively. The present study has not only confirmed the traditional use of Thai plants for the treatment of ED but also indicated the potential and application of the “MANOSROI III” database for Thai plant selection to be developed as ED food supplements.