The teratogenic effect of pregabalin on heart, liver and kidney in rats: a light microscopic, electron microscopic and immunohistochemical study

Background Pregabalin (PGB) was approved as new anti-epileptic drugs with little information about its teratogenic effect. Aim of the work to evaluate the developmental toxicity of PGB. Materials and methods 60 pregnant albino rats were divided into three groups. PGB (500 mg/kg body weight/day) was given to group II, PGB (1250 mg/kg body weight/day) was given to Group III and no medications were given to group I. The pups were normally delivered. Liver, kidney and heart specimens were prepared for histological, immunohistochemical, and morphometric studies. Results A dose of 500 mg of PGB had minimal toxic effects in the form of mild collagen deposition and moderate positive caspase-3 immunoexpression. PGB dose of 1250 mg/kg induced gross toxic effects in form of degenerated cardiac myofibres, ruptured blood vessels, vacuolations in the renal cortex, fibrosis and strong positive caspase-3 immunoexpression. Conclusion PGB at dose of 500 mg/kg revealed minimal toxic changes. PGB cause embryotoxicity in a dose-dependent manner, as the higher dose induced more degenerative changes.

Assessment of Larval Toxicity and the Teratogenic Effect of Three Medicinal Plants Used in the Traditional Treatment of Urinary Tract Infections in Benin

Objective. Mangifera indica Linn, Bridelia ferruginea Benth, and Alstonia boonei De Wild are three plants commonly used in the traditional treatment of urinary tract infections in Benin. This study sets out to assess the cytotoxic and teratogenic effects of extracts of these plants on Artemia salina larvae and hen embryos. Methods and Results. The aqueous and ethanolic extracts were obtained by maceration of the powders in solvents. Larval cytotoxicity was performed on Artemia salina larvae. The teratogenic effect of these plants was evaluated on chick embryos at 100 mg/kg and 300 mg/kg. The extracts were injected on the 7th and 14th days of incubation. The quality of the hatched chicks was evaluated by the Tona score followed by the hematological and the biochemical parameter assays. The extracts did not show cytotoxicity on the larvae. The eggs treated with plant extracts at 300 mg/kg significantly lowered the hatchability rate, except for the Mangifera indica Linn. The chicks obtained were all at the very good quality. Then, no significant variation was observed between hematological parameters except white blood cells. For the biochemical parameters, only ASAT showed some significant variations for a few extracts. It would be important to assess the genotoxicity of the plant extracts to determine more broader toxicity. These data justify the use of these medicinal plants in traditional Beninese medicine and constitute in fact a source of production of anti-infectious drugs.

Effects of Prenatal Exposure to Aflatoxin B1: A Review

Aflatoxins are mycotoxins produced as secondary fungal metabolites. Among them, aflatoxin B1 (AFB1) stands out due to its genotoxic and mutagenic potential, being a potent initiator of carcinogenesis. In this review, the outcomes from the published literature in the past 10 years on the effects of AFB1 pathophysiological mechanisms on embryological and fetal development are discussed. In several animal species, including humans, AFB1 has a teratogenic effect, resulting in bone malformations, visceral anomalies, lesions in several organs, and behavioral and reproductive changes, in addition to low birth weight. The mutagenic capacity of AFB1 in prenatal life is greater than in adults, indicating that when exposure occurs in the womb, the risk of the development of neoplasms is higher. Studies conducted in humans indicate that the exposure to this mycotoxin during pregnancy is associated with low birth weight, decreased head circumference, and DNA hypermethylation. However, as the actual impacts on humans are still unclear, the importance of this issue cannot be overemphasized and studies on the matter are essential.

The Prevalence of using Prescribed & Unprescribed “Roaccutane (Isotretinoin)” among Females Riyadh, Saudi Arabia: A Cross Sectional Study

Aims: To determine the prevalence of using prescribed and unprescribed Isotretinoin and to assess knowledge of its adverse effects among females in Riyadh, SA. Study design: cross-sectional study. Place and Duration of Study: online questionnaire collected throughout two months by distributing the questionnaire via. social media platforms. Methodology: We included 385 female patients (age range 15-45 years) use Roaccutane (Isotretinoin) with or without prescribed. Statistical analysis was performed using Rv 3.6.3. Counts and percentages was used to summarize the distribution of categorical variables and data. Chi-square test was used to estimate the association between categorical variables. Hypothesis testing was performed at a 5% level of significance. Results: 568 respondents completed the questionnaire. Of these, 440 were from Riyadh. The majority of respondents were aged 15 – 20 (46.4%) and 21 – 25 (35.2%). Knowledge regarding some side effects of Roaccutane was significantly higher in respondents who reported using Roaccutane than those who did not. Knowledge of dry and cracked lips as a side effect was significantly higher in users (91.9%) than non-users (73.1%). Similarly, knowledge regarding dry eyes, depression, continuous thirst, nose dryness, bleeds, and effect of Roaccutane on liver biochemical profile, lipid profile, and bones was higher in users than non-users, regarding the teratogenic effect of Roaccutane was insignificantly different between groups. Conclusion: Females in Riyadh are aware of the side effects of isotretinoin, particularly dryness of the skin, eyes, and lips. Yet there is insufficient knowledge regarding its teratogenic effect. Based on the reported results, a few participants obtained Roaccutane without a prescription from the doctor, and some obtained their information from unreliable sources (i.e., friends/relatives). Our results suggest good practice towards the prescription of isotretinoin.

Mental development of children from paired mothers with epilepsy: assessing remote teratogenic effects and predictors of developmental disorders

Objective: to study teratogenic effect – the long-term pregnant mother-taken antiepileptic drugs (AEDs) related consequences on paired child mental, social and intellectual development.Material and methods. There were enrolled 80 subjects: 40 children aged 3–9 years and paired mothers suffering from epilepsy for 3 to 35 years. Thirteen and 27 patients had generalized and focal epilepsy, respectively. Seven mothers were in prolonged remission without taking AEDs, 23 were on monotherapy and 10 were on polytherapy. Child research methods: T. Achenbach's clinical CBCL (The Child Behavior Checklist) scales (for children aged under 5 and 6–18 years), a questionnaire for detecting attention deficit hyperactivity disorder and other behavioral disorders modified by N.N. Zavadenko, Wechsler Intelligence Scale for Children (WISC), Luria batteries of neuropsychological tests adapted by J.M. Glozman (for children aged 3–6 and 7–12 years).Results. Neuropsychological study and assessment of intelligence revealed problems in the development of praxis, speech, gnostic functions and memory, as well as disproportion in the development of verbal and non-verbal structures of intelligence. The most common behavioral disorders in children were impulsivity, distraction, difficulties in controlling and organizing movements. The most affected spheres were praxis (motor awkwardness, fine motor disorders of the hands) and speech.Conclusion. The proposed hypothesis that the teratogenic effect of taking AEDs may result in unevenness or delay in developing mental functions in a child was confirmed.

Drugs Used During Pregnancy and Lactation

In time of pregnancy, drugs are often required to treat certain disorders. In general potential benefit outweighs known risks, drugs may be considered for treatment of disorders during pregnancy. All maternal drugs not cross the planceta to the fetus. Some drugs that cross the placenta may have a direct toxic effect or teratogenic effect . Understanding the risks of drugs use in pregnancy has lagged being the advances in other areas of pharmacotherapy. The adverse developmental effects of pharmaceutical products are recognized to include not only mal formation, but also growth restrictions, fetal death and functional defects in the newborn. Drug that does not cross placenta but still harm the fortus. 1979, FDA developed a system determining teratogenic risk of drugs based on animals& human studies. Divided drugs into 5 categories (A ,B, C, D, X). This article provide clinical therapeutic guidance relating drug use in pregnancy.

State of ART in the COVID-19 era and consequences on human reproductive system

The outbreak of the COVID-19 virus has created havoc on the socio-economic aspect of the world. With billions of lives affected by this wrecking pandemic, global fertility services were also not left untouched by its impact. The possibility of sexual transmission of SARS-CoV-2 virus, its impact on male and female fertility, pregnancy, its potential teratogenic effect, and handling of gametes in the clinical laboratories were major concerns among reproductive medicine specialists which led down all the reproductive health services including IUI, IVF/ICSI in most of the countries. Even the people did not intend to conceive during the pandemic crisis and were hesitant to avail such services. Discrete evidence regarding the pathophysiology of COVID-19 infection and its impact on the human reproductive system is not very clear. In this review article, we intend to incorporate all the evidence related to the COVID-19 infection and its impact on human reproduction available to date. It’s our responsibility to provide rightful information and to keep our patients familiar with the existing lack of clear evidence. In this COVID-19 era, it’s important that the fertility management be prioritized in sub-fertile couples with diminished fertility reserve, and high-risk conditions like malignancies, that may affect their long-term fertility prospects.