جستجوی مقالات مرتبط با کلیدواژه « hMG » در نشریات گروه « پزشکی »

Idiopathic male infertility refers to the condition in which there is no clear cause for the diagnosis of infertility. Human menopausal gonadotropin (HMG) containing the follicle-stimulating hormone and luteinizing hormone is a medication that causes ovarian follicles to grow in women. This medication can also induce spermatogenesis in men. The present study was conducted to investigate and compare the rates of pregnancy and live birth in partners of men with unexplained infertility after the injection of 8 and 12 ampules of HMG.

This clinical trial study was carried out on 22 men with unexplained infertility who referred to the Urology Clinic of Rafsanjan University of Medical Sciences, Rafsanjan, Iran, during March 2016 and December 2018. The patients were randomly divided into two groups each of which included 11 cases. For one group 8 HMG injections and for the other group 12 HMG injections were administered (two injections per week). Afterward, the results of clinical pregnancy were assessed, and the cases were followed up to live birth after the clinical pregnancy. Data analysis was carried out using the Chi-square test.

In this study, the rate of positive pregnancy was reported as 62.5% in the group with 12 HMG injections in comparison to 37.5% in the group with 8 HMG injections. Although the pregnancy rate was higher in the 12-injection group, statistically there was no significant difference (P=0.7).

According to the results of the present study, it can be concluded that for couples with unexplained male infertility, the administration of 8 to 12 HMG injections can increase the chance of pregnancy and live birth. Since this study was the first attempt to evaluate the pregnancy rate after treatment with HMG, it is suggested to perform further studies for the assessment of HMG effect on hormonal profile and chromatin quality.

The purpose of this study was to compare the effects of letrozole plus recombinant follicle stimulating hormone (R-FSH) and human menopausal gonadotropin (HMG) on ovarian stimulation in intrauterine insemination (IUI) cycle. This randomized clinical trial was conducted on 130 women with polycystic ovary syndrome (PCOS) resistant to clomiphene and letrozole who were divided into A and B groups. Both groups received 5 mg of letrozole daily from the third to seventh day of the cycle and then group A (n = 59) received 75 units of HMG intramuscularly per day and group B received 75 units of R-FSH subcutaneously per day. Follicular maturation was triggered with 250 μg of recombinant human chorionic gonadotrophin (R-hCG) and IUI was performed 36 hours later. Main results under study were the number of matured follicles, endometrial thickness on the day of hCG injection, and the rate of chemical and clinical pregnancy. The 2 groups were not significantly different in demographic information. The rate of pregnancy was significantly higher in the letrozole + R-FSH group than in the letrozole+HMG group (20% and 5.8% respectively, P = 0.04). There was no significant difference between the 2 groups in the number of mature follicles (≤18 mm) and endometrial thickness at the time of hCG injection (P > 0.05). Letrozole plus R-FSH is a recommended regimen for ovarian stimulation in PCOS patients.

The follicular growth and development may be affected by abused drugs. Nandrolone decanoate (ND) as an anabolic androgenic steroid can damage the morphological and functional features of the ovary and may lead to reproductive failure.

This study was designed to evaluate the effects of synchronized and non-synchronized administration of Human Menopausal Gonadotropins (hMG) with ND on ovarian tissue and level of sex hormones in the adult female rat.

Forty adult female Sprague Dawley rats were divided into eight groups. The five experimental groups received 3 and/or 10 mg/kg of ND synchronized and non-synchronized with 10 IU of hMG and hMG alone. The two shams and control groups received solvents of ND and hMG. The animal's serum levels of Follicle-stimulating hormone, Luteinizing hormone, progesterone and estrogen and the weight, volume and dimensions of the ovaries were measured. The ovaries were prepared for apoptosis assessment and morphological study.

The ovarian volume and sex hormones in the experimental groups were decreased, but ovarian weight and dimensions didn’t change. The rate of apoptosis was increased in the experimental groups as follows; a low and high dose of ND synchronized with hMG 48.80±18.70 and 65.20±14.20 respectively vs. Sham 1, 33.20±17.80, a low and high dose of ND non-synchronized with hMD 55.80±17.20 and 75.20±14.30 respectively vs. Sham 2, 31.60±32.40 groups, p˂0.01. Follicular and stromal cells were damaged in the experimental groups except for the hMG group.

Administration of ND decreased the serum level of Luteinizing hormone, Follicle-stimulating hormone, progesterone and estrogen and damaged ovarian tissue irreversibly and irreparably and hMG cannot prevent the destruction of the follicles in the adult female rats. This can be a serious warning to women who abuse ND.

Zingiber officinale Roscoe, commonly known as ginger, is used as a cooking spice and therapeutically for its antioxidant and androgenic activities. We investigated the effects of Z. officinale hydro-alcoholic extract on HMG-CoA (3-hydroxy-3-methylglutaryl coenzyme A) reductase level in the testis of streptozotocin (STZ)-induced diabetic rats.
The current experimental study was performed on four groups of male Wistar rats one of them was kept as a healthy control, while the others were rendered diabetic via a single intraperitoneal injection of STZ (60 mg kg-1). One group was considered as diabetic control; while the others were given orally hydro-alcoholic extract (200 and 400 mg kg-1) for 56 consecutive days. Body weight, blood glucose and insulin concentrations were evaluated using standard methods. The HMG-COA reductase level was determined by western blot analysis.
Treatment with the extract resulted in a significant reduction of serum glucose concentration and HMG-COA reductase level in the rat’s testis compared to diabetic controls (P Ginger has a potential influence on the regulation of cholesterol homeostasis by modulating of HMG-COA reductase level. The results provide scientific evidence to confirm the traditional use of Z. officinale in the treatment of diabetes mellitus.

Recent retrospective observational studies suggest that high-potency statin therapy might increase the risk of acute kidney injury, however data on this subject is scares.
This study, was designed to investigate the renal tubular cell effect of different doses of atorvastatin to detect the possible aggravation of renal function or morphology of the kidney.
In this experimental study 24 male Wistar rats were designated into 4 equal groups and treated as follows. Control group received phosphate buffer as the vehicle of atorvastatin for 7 days. Groups 1, II and III received atorvastatin at doses of 10, 50 and 150 mg/kg daily for 7 days, then on the day 8, all rats were anesthetized using ketamine and the blood samples were collected for evaluation of creatinine (Cr) and blood urea nitrogen (BUN) levels and then all rats were sacrificed, then the animals’ kidneys were dissected out and histopathological studies were performed Mean (±SD) of scores of injury to renal tubular cells in control group was 4.2 ± 2.2 and in groups I, II and III were 6.44 ± 4.9, 15.4 ± 8.5 and 25.8 ± 12.7 respectively. Group III which received 150 mg/kg/day of atorvastatin had significant renal damage in comparison to control group (P In the present study we found, atorvastatin with a dose of 150 mg/kg/day for 7 days was nephrotoxic for rats, while lower doses at 10 mg/kg/day or 50 mg/kg/day for 7 days were not accompanied by renal injury. These findings imply further attention to the administration of higher doses of atorvastatin in clinical conditions.

To evaluate the impact of luteal phase support with vaginal progesterone on pregnancy rates in the intrauterine insemination (IUI) cycles, stimulated with clomiphene citrate and human menopausal gonadotropin (hMG), in sub fertile couples.This prospective, randomized, double blind study was performed in a tertiary infertility center from March 2011 to January 2012. It consisted of 253 sub fertile couples undergoing ovarian stimulation for IUI cycles. They underwent ovarian stimulation with clomiphene citrate (100 mg) and hMG (75 IU) in preparation for the IUI cycle. Study group (n=127) received luteal phase support in the form of vaginal progesterone (400 mg twice a day), and control group (n=126) received placebo.Clinical pregnancy and abortion rates were assessed and compared between the two groups.The clinical pregnancy rate was not significantly higher for supported cycles than that for the unsupported ones (15.75% vs. 12.69%, p=0.3). The abortion rate in the patients with progesterone luteal support compared to placebo group was not statistically different (10% vs. 18.75%, p=0.45).It seems that luteal phase support with vaginal progesterone was not enhanced the success of IUI cycles outcomes, when clomiphene citrate and hMG were used for ovulation stimulation.

We aimed to compare human menopausal gonadotropin (hMG) and recombinant follicle-stimulating hormone (r FSH) with respect to clinical outcomes and the development of ovarian hyperstimulation syndrome (OHSS) for patients with polycystic ovary syndrome (PCOS) treated with in vitro fertilization (IVF). This prospective randomized controlled trial included a total of 80 women with PCOS. Of these, 38 were randomized to receive treatment with hMG and 42 with rFSH using a long gonadotropin releasing hormone (GnRH) analogue protocol. Outcome measures were cycle characteristics, pregnancy rates, the need for coasting, and OHSS rates. In the hMG group we observed a significantly lower peak estradiol (E2) level (p=0.02), fewer intermediate-sized follicles (p=0.001), lower number of oocytes retrieved (p=0.002) and metaphase II (MII) oocytes (p=0.003). However, there were no significant differences between the groups in the number of fertilized oocytes, fertilization rates, top quality embryo counts, and the number of transferred embryos. There was no difference in pregnancy rates between the groups. OHSS occurred in 11.9% of the rFSH group patients, whereas no OHSS developed in the hMG group. Coasting requirements were lower in the hMG group (19.2% vs. 48.9%, p=0.013). Ovarian stimulation with hMG and rFSH provides similar clinical pregnancy rates in PCOS patients treated with a long GnRH agonist protocol in IVF cycles. hMG stimulation appears to be associated with a lower rate of OHSS and decreased coasting requirements (Registration Number: NCT01365936).

The most frequent physical finding in infertile men is varicocele, in which one of the mechanisms that can affect seminal parameters is oxidative stress. Our study aimed, for the first time, to compare the efficacy of recombinant human follicle-stimulating hormone (rhFSH), human chorionic gonadotropin (HCG) and human menopausal gonadotropin (HMG) on sperm parameters and fertility after varicocelectomy. 113 infertile men with varicocele were divided into four groups. Group A received HCG 5000 IU weekly, group B received HMG 75 IU three times a week, group C received rhFSH 75 IU three times a week and group D received no medical treatment after varicocelectomy. After three months, in group A sperm morphology improved (p=0.007), causing a 32% pregnancy rate. In group B, sperm motility (p=0.023) and morphology (p=0.014) improved, causing a 57% pregnancy rate. In group C, all of the investigated semen parameters increased (p<0.05), causing a 62.5% pregnancy rate. Only rhFSH improved sperm concentrations to >20×106 mL (p=0.027). In group D, sperm morphology increased (p=0.038), but other parameters remained unchanged and no pregnancies occurred. It can be concluded that drugs can reduce induction time for spermatogenesis and fertility in