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1.
Mymensingh Med J ; 33(2): 586-591, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38557544

RESUMO

Infertility, affecting 60 to 80 million couples globally, is clinically defined as the inability to conceive after 12 months of unprotected sexual contact. Male factors contribute significantly, comprising 40.0% to 50.0% of infertility cases. While the prevalence ranges from 5.0% to 30.0% in developing countries, the exact global prevalence remains unknown. The study, conducted at CMH and Ibn Sina Hospital, Jashore from October 2020 to September 2023, utilized a cross-sectional approach; examining 4173 samples aged 21 to 41. Exclusion criteria considered known female reproductive abnormalities or medications impacting male fertility. Standardized procedures, in-depth questionnaires and SPSS software version 15.0 were employed, adhering to World Health Organization Guidelines. In a study of 4173 seeking infertility treatment, 63.0% had abnormal semen parameters, with 45.0% aged 31-40 years. Addiction patterns: 76.0% used tobacco, 14.0% reported alcohol and tobacco. Occupations: 43.0% government workers, 41.0% private workers. Marriage duration: 44.0% married 5-10 years, infertility duration: 64.0% less than 6 years. Semen analysis showed 40% with sperm count above 65 million, 46.0% with 60.0-90.0% motile sperm, and 78.0% with sperm morphology below 15.0%. The most prevalent abnormality is asthenozoospermia 59%, with oligozoospermia and azoospermia observed in 31% and 3% of cases, respectively. This study highlights the global complexity of male infertility, emphasizing genetic factors in infertile couples. Addressing sample bias and the lack of national epidemiological data underscores the ongoing need for comprehensive research to advance global infertility diagnosis and treatment.


Assuntos
Infertilidade Masculina , Sementes , Masculino , Humanos , Feminino , Prevalência , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/terapia , Análise do Sêmen , Espermatozoides , Contagem de Espermatozoides
2.
Sci Rep ; 14(1): 7720, 2024 04 02.
Artigo em Inglês | MEDLINE | ID: mdl-38565688

RESUMO

Male reproductive impairment has been linked with an increased risk of numerous non-communicable diseases. Yet, epidemiological data on renal disease among subfertile men is scarce. Therefore, by using male childlessness as a proxy for male infertility, we aimed to investigate its association with renal function. Data was sourced from a population-based cohort including 22,444 men. After exclusion of men aged < 45 years (n = 10,842), the remaining men were divided into two groups: these being childless (n = 5494) and fathers (n = 6108). Logistic regression was applied to explore the association between male childlessness and renal impairment. Childless men as compared to fathers, were more likely to have an estimated-glomerular filtration rate < 60 ml/min/1.73m2 (OR 1.36, 95 CI 1.08-1.70; p = 0.008). After adjustment for age, marital status, smoking habits, diabetes, hypertension and other components of metabolic syndrome, childless men were also more likely to have dipstick proteinuria (OR 1.85, 95 CI 1.16-2.95; p = 0.01). With the growing panorama of disease associated with male reproductive impairment, men with fertility issues may constitute a target population with potential benefit from closer follow-up of their renal function.


Assuntos
Infertilidade Masculina , Síndrome Metabólica , Humanos , Masculino , Prevalência , Infertilidade Masculina/epidemiologia , Síndrome Metabólica/epidemiologia , Pai , Rim
3.
Therapie ; 79(2): 199-203, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37973492

RESUMO

For several years, fertility disorders have been on the increase worldwide. These disorders affect both sexes, but are more pronounced in men; and in half of cases the etiology is unknown. The role of drugs in male infertility has been little studied to date. Most of the available data comes from experimental animal studies, with all their limitations. With the exception of a few drugs, such as certain anticancer agents, human data are rare. This article describes the mainly drugs known to have deleterious effects on male fertility, the mechanisms leading to these effects and methods used to assess the risk of drug-induced male infertility. It underlines the need for further work in experimental research, clinical trials and post-marketing surveillance to improve our knowledge of drugs that induce male infertility. Although these adverse effects are not life-threatening, they can have a significant impact on patients' lives.


Assuntos
Antineoplásicos , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Infertilidade Masculina , Feminino , Animais , Humanos , Masculino , Fertilidade , Infertilidade Masculina/induzido quimicamente , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/tratamento farmacológico , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/epidemiologia , Fatores de Risco , Antineoplásicos/efeitos adversos
4.
Fertil Steril ; 121(2): 271-280, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-37549839

RESUMO

OBJECTIVE: To evaluate the association of body mass index (BMI) with cycle outcomes after euploid frozen blastocyst transfer. DESIGN: Retrospective cohort study. SETTING: Not applicable. PATIENT(S): A total of 56,564 first single autologous euploid frozen embryo transfers from the 2016-2019 Society for Assisted Reproductive Technology database were analyzed using BMI and using World Health Organization BMI cohorts. Subanalyses were performed on cycles among patients with a sole diagnosis of polycystic ovary syndrome (PCOS) (n = 4,626) and among patients with only a male factor (n = 10,854). INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Clinical pregnancy, pregnancy loss, and live birth (LB). RESULT(S): Success rates and adjusted odds ratios (aORs) with 95% confidence intervals (CIs) for all outcomes were most favorable among those with normal BMI and progressively worsened with increasing BMI. These trends persisted among patients with PCOS for clinical pregnancy (aOR, 0.99; 95% CI, 0.98-0.997), pregnancy loss (aOR, 1.02; 95% CI, 1.01-1.04), and LB (aOR, 0.98; 95% CI, 0.97-0.99), but not among patients with a male factor only for clinical pregnancy (aOR, 1.00; 95% CI, 0.99-1.01), pregnancy loss (aOR, 1.01; 95% CI, 0.99-1.03), or LB (aOR, 0.99; 95% CI, 0.98-1.00). CONCLUSION(S): In the largest cohort to date, increasing BMI was associated with decreased pregnancy and LB and increased pregnancy loss after euploid frozen embryo transfers among the entire cohort and among patients with a sole diagnosis of PCOS; however, these results were attenuated among patients with a sole diagnosis of male factor infertility, suggesting that associated female infertility diagnoses and not BMI alone may underlie this trend.


Assuntos
Aborto Espontâneo , Infertilidade Masculina , Síndrome do Ovário Policístico , Gravidez , Humanos , Masculino , Feminino , Índice de Massa Corporal , Taxa de Gravidez , Estudos Retrospectivos , Transferência Embrionária , Infertilidade Masculina/diagnóstico , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/terapia , Nascido Vivo , Aborto Espontâneo/diagnóstico , Aborto Espontâneo/epidemiologia , Aborto Espontâneo/etiologia , Síndrome do Ovário Policístico/diagnóstico , Síndrome do Ovário Policístico/epidemiologia , Síndrome do Ovário Policístico/terapia , Blastocisto
5.
Eur Urol Focus ; 10(1): 98-106, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37573151

RESUMO

CONTEXT: Male infertility has been associated with increased morbidity and mortality. OBJECTIVE: To perform a systematic review and meta-analysis to provide the most critical evidence on the association between infertility and the risk of incident comorbidities in males. EVIDENCE ACQUISITION: A systematic review and meta-analysis was performed according to the Meta-analysis of Observational Studies in Epidemiology and Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines, and registered on PROSPERO. All published studies on infertile versus fertile men regarding overall mortality and risks of cancer, diabetes, and cardiovascular events were selected from a database search on PubMed, EMBASE, Google Scholar, and Cochrane. Forest plot and quasi-individual patient data meta-analysis were used for pooled analyses. A risk of bias was assessed using the ROBINS-E tool. EVIDENCE SYNTHESIS: Overall, an increased risk of death from any cause was found for infertile men (hazard risk [HR] 1.37, [95% confidence interval {CI} 1.04-1.81], p = 0.027), and a 30-yr survival probability of 91.0% (95% CI 89.6-92.4%) was found for infertile versus 95.9% (95% CI 95.3-96.4%) for fertile men (p < 0.001). An increased risk emerged of being diagnosed with testis cancer (relative risk [RR] 1.86 [95% CI 1.41-2.45], p < 0.001), melanoma (RR 1.30 [95% CI 1.08-1.56], p = 0.006), and prostate cancer (RR 1.66 [95% CI 1.06-2.61], p < 0.001). As well, an increased risk of diabetes (HR 1.39 [95% CI 1.09-1.71], p = 0.008), with a 30-yr probability of diabetes of 25.0% (95% CI 21.1-26.9%) for infertile versus 17.1% (95% CI 16.1-18.1%) for fertile men (p < 0.001), and an increased risk of cardiovascular events (HR 1.20 [95% CI 1.00-1.44], p = 0.049), with a probability of major cardiovascular events of 13.9% (95% CI 13.3-14.6%) for fertile versus 15.7% (95% CI 14.3-16.9%) for infertile men (p = 0.008), emerged. CONCLUSIONS: There is statistical evidence that a diagnosis of male infertility is associated with increased risks of death and incident comorbidities. Owing to the overall high risk of bias, results should be interpreted carefully. PATIENT SUMMARY: Male fertility is a proxy of general men's health and as such should be seen as an opportunity to improve preventive strategies for overall men's health beyond the immediate reproductive goals.


Assuntos
Doenças Cardiovasculares , Diabetes Mellitus , Infertilidade Masculina , Neoplasias da Próstata , Humanos , Masculino , Saúde do Homem , Infertilidade Masculina/epidemiologia , Nível de Saúde , Doenças Cardiovasculares/epidemiologia , Diabetes Mellitus/epidemiologia
6.
Pan Afr Med J ; 45: 177, 2023.
Artigo em Francês | MEDLINE | ID: mdl-37954441

RESUMO

Introduction: in Lubumbashi, as in upscale areas where explorations of fertility are very clever, the spermogram remains the essential analysis in the diagnosis of male infertility. This is the cause of 40% of couple infertility. The spermogram is the first step in identifying seminal abnormalities. The objective of this study was to determine the epidemiological-clinical and seminal profile of the man consulting for the desire to procreate in Lubumbashi. Methods: this was a cross-sectional study. We received 202 subjects in Lubumbashi, whose spermogram was performed from August 1st, 2020 to July 31st, 2021. The semen parameters were studied and interpreted according to WHO standards (2010) with studies of factors associated with their disturbance. Bivariate and multivariate analyzes had been carried out. The statistical significance threshold was set at p < 0.05. Results: the epidemiological-clinical profile of the respondents was as follows: the most represented age group was 30 to 39 years; infertility was primary in 80.69% of cases; the duration of the desire for paternity was 2 years at most in 44.55% of cases. The sperm abnormalities found were: oligozoospermia (40.09%), azoospermia (11.38%), asthenozoospermia (18.31%) and teratozoospermia (10.39%). Oligozoospermia was significantly associated with varicocele (ORa = 10.9 [3.0-39.5]; p < 0.0001), genital infection (ORa =2.7 [1.0-7, 2]; p = 0.041) and obesity (ORa = 2.6 [1.0-7.9]; p = 0.020) while azoospermia was the cure for inguinal hernia (ORa = 4.2 [1.0-17.2]; p = 0.049) and malnutrition (ORa =6.0 [1.2-29.7]; p = 0.027). Asthenozoospermia was significantly associated with the age group of 40 to 49 years (ORa = 6.6 [1.2-37.4]; p = 0.034), tobacco (ORa =7.5 [2.7 -21.0]; p = 0.000), undernutrition (ORa = 7.7 [1.0-61.9]; p = 0.045) and overweight (ORa =3.8 [1.3-11, 5]; p=0.019). Teratozoospermia was significantly associated with smoking (ORa = 5.6 [1.8-17.7]; p = 0.003) and overweight (ORa =5.3 [1.2-23.3]; p = 0.027). Conclusion: more than half of the respondents had, of the three main fertility parameters, at least one that was disturbed. Sperm count was the most affected parameter. Alcohol, tobacco, genital infection and malnutrition were the most common risk factors for the abnormalities observed.


Assuntos
Astenozoospermia , Azoospermia , Infertilidade Masculina , Desnutrição , Oligospermia , Teratozoospermia , Masculino , Humanos , Adulto , Pessoa de Meia-Idade , Oligospermia/complicações , Azoospermia/complicações , Astenozoospermia/complicações , Sobrepeso/complicações , Teratozoospermia/complicações , Estudos Transversais , República Democrática do Congo/epidemiologia , Sementes , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia , Desnutrição/complicações
7.
Fertil Steril ; 120(6): 1098-1111, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37839720

RESUMO

The impact of paternal obesity and metabolic disease on semen quality and fertility outcomes is not fully appreciated. With increasing obesity rates, researchers have studied the intricate relationship between paternal body mass index, metabolic health, and male fertility. This systematic review identified 112 articles in the MEDLINE database between 2013 and 2023 that investigated the effects of body mass index, diabetes, metabolic syndrome, exercise, weight loss medication, or bariatric surgery on semen parameters, sperm quality, or fertility outcomes. This review suggests that obesity, diabetes, and metabolic syndrome have a negative impact on various parameters of male fertility, from semen quality to sperm deoxyribonucleic acid integrity. There is also mounting evidence that male obesity is correlated negatively with live births via both natural conception and assisted reproductive technologies. Lifestyle interventions, such as physical exercise, generally appear to improve male fertility markers; however, the type and intensity of exercise may play a crucial role. Pharmacologic treatments for weight loss, such as metformin and glucagon-like peptide 1 agonists, present a more complex picture, with studies suggesting both beneficial and detrimental effects on male reproductive health. Similarly, surgical interventions, such as gastric bypass surgery, show promise in improving hormonal imbalances but have mixed effects on semen parameters. Future research is needed to clarify these associations and inform clinical guidelines. In the interim, health practitioners should incorporate these insights into clinical practices, encouraging proactive lifestyle changes and providing targeted treatments to improve male reproductive health.


Assuntos
Diabetes Mellitus , Infertilidade Masculina , Síndrome Metabólica , Masculino , Humanos , Análise do Sêmen , Sêmen , Síndrome Metabólica/diagnóstico , Síndrome Metabólica/epidemiologia , Síndrome Metabólica/etiologia , Obesidade/complicações , Obesidade/diagnóstico , Obesidade/epidemiologia , Infertilidade Masculina/diagnóstico , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia , Fertilidade , Redução de Peso
8.
Artigo em Inglês | MEDLINE | ID: mdl-37572397

RESUMO

The worldwide prevalence of obesity is increasing among both sexes, with associated impacts on chronic health and medical comorbidities. Similarly, the effects of obesity on reproductive health are increasingly being recognized. Adiposity is associated with reduced fertility in men, with a complex and multifactorial etiology. The reported effects of obesity on semen parameters and impaired fertility are contrasting, with some studies showing a clear reduction in reproductive outcomes associated with increased body mass index, while others do not show such impacts. These controversies may be due to the complex pathophysiology and interplay between gonadotropins and end organs, as well as genetic and epigenetic changes and oxidative stress on male fertility and function. These different aspects have led to heterogeneous participants in studies and varying implications for assisted reproductive outcomes as well as offspring health. Treatment modalities to manage obesity include lifestyle, medical, and surgical options, with emerging and effective medical treatments showing promise in reproductive outcomes.


Assuntos
Infertilidade Masculina , Obesidade , Feminino , Masculino , Humanos , Obesidade/complicações , Obesidade/epidemiologia , Obesidade/terapia , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia , Infertilidade Masculina/terapia , Fertilidade , Análise do Sêmen , Sêmen
9.
Medicina (Kaunas) ; 59(7)2023 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-37512119

RESUMO

Background and Objectives: The relationship between male infertility (MI) and testicular cancer (TC) is bilateral. On one hand, it is well-established that patients diagnosed with TC have a high risk of pre- and post-treatment infertility. On the other hand, the risk of developing TC in male infertile patients is not clearly defined. The objective of this review is to analyze the histopathological, etiological, and epidemiological associations between MI and the risk of developing testicular cancer. This review aims to provide further insights and offer a guide for assessing the risk factors for TC in infertile men. Materials and Methods: A comprehensive literature search was conducted to identify relevant studies discussing the relationship between MI and the risk of developing TC. Results: The incidence rates of germ cell neoplasia in situ (GCNIS) appear to be high in infertile men, particularly in those with low sperm counts. Most epidemiological studies have found a statistically significant risk of developing TC among infertile men compared to the general or fertile male populations. The concept of Testicular Dysgenesis Syndrome provides an explanatory model for the common etiology of MI, TC, cryptorchidism, and hypospadias. Clinical findings such as a history of cryptorchidism could increase the risk of developing TC in infertile men. Scrotal ultrasound evaluation for testis lesions and microlithiasis is important in infertile men. Sperm analysis parameters can be useful in assessing the risk of TC among infertile men. In the future, sperm and serum microRNAs (miRNAs) may be utilized for the non-invasive early diagnosis of TC and GCNIS in infertile men. Conclusions: MI is indeed a risk factor for developing testicular cancer, as demonstrated by various studies. All infertile men should undergo a risk assessment using clinical examination, ultrasound, and semen parameters to evaluate their risk of TC.


Assuntos
Criptorquidismo , Infertilidade Masculina , Neoplasias Testiculares , Humanos , Masculino , Neoplasias Testiculares/complicações , Neoplasias Testiculares/epidemiologia , Criptorquidismo/complicações , Criptorquidismo/epidemiologia , Sêmen , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia
10.
J Endocrinol Invest ; 46(1): 1-14, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35842891

RESUMO

BACKGROUND: P450 oxidoreductase (POR) deficiency (PORD) is characterized by congenital adrenal hyperplasia (CAH) and disorders of sex development (DSD) in both sexes. PORD can also associate with skeletal defects. However, the prevalence of these phenotypes is unknown. AIM: To evaluate the prevalence of CAH, DSD, and infertility of patients with POR gene pathogenic variants by a systematic review of the literature. METHODS: The literature search was performed through PubMed, MEDLINE, Cochrane, Academic One Files, Google Scholar, and Scopus databases. All studies reporting information on CAH, DSD, testicular adrenal rest tumor (TARTs), and fertility in patients with POR gene pathogenic variants were included. Finally, the prevalence of abnormal phenotypes was calculated. RESULTS: Of the 246 articles initially retrieved, only 48 were included for a total of 119 (46 males and 73 females) patients with PORD. We also included the case of a male patient who consulted us for CAH and TARTs but without DSD. This patient, found to be a carrier of combined heterozygous POR mutation, reached fatherhood spontaneously. All the patients found had CAH. The presence of DSD was found in 65.2%, 82.1%, and 82.1% of patients with compound heterozygosity, homozygosity, or monoallelic heterozygous variants, respectively. The prevalence was significantly higher in females than in males. The prevalence of TARTs in patients with PORD is 2.7%. Only 5 women with PORD became pregnant after assisted reproductive techniques and delivered a healthy baby. Except for the recently reported proband, no other studies focused on male infertility in patients with POR gene variants. CONCLUSION: This systematic review of the literature reports the prevalence of CAH, DSD, and TARTs in patients with PORD. The unknown prevalence of POR gene pathogenetic variants and the paucity of studies investigating fertility do not allow us to establish whether PORD is associated with infertility. Further studies on both women and men are needed to clarify this relationship.


Assuntos
Hiperplasia Suprarrenal Congênita , Infertilidade Masculina , Humanos , Gravidez , Masculino , Feminino , Hiperplasia Suprarrenal Congênita/epidemiologia , Hiperplasia Suprarrenal Congênita/genética , Hiperplasia Suprarrenal Congênita/complicações , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/genética , Mutação , Fenótipo , Heterozigoto
11.
J Public Health (Oxf) ; 45(2): e241-e249, 2023 Jun 14.
Artigo em Inglês | MEDLINE | ID: mdl-35485418

RESUMO

BACKGROUND: The study of reproductive characteristics of 430 male subjects of different age, fertility status and educational level who were involved in the program of extracorporeal fertilization at the Clinic of Gynecology and Obstetrics, Clinical Centre Nis, examined their knowledge, attitudes and behavior regarding tobacco and alcohol consumption as lifestyle risk predictors of their partial or full infertility. METHODOLOGY: Consisted of the analyses of spermiograms to establish their fertility status and a survey of their attitudes towards smoking and alcohol use (behavior, knowledge of the general health and reproductive health consequences of such a lifestyle, and their determination to change it). RESULTS: The proportion with higher tobacco consumption and more severe forms of infertility increased significantly with ageing (P < 0.001); the highest daily consumption of alcohol and the incidence of intoxication was seen among azoospermic patients; the level of awareness of the harmful effects of tobacco was highest among normozoospermic subjects and the highest level of determination to quit smoking was statistically significantly present among azoospermic subjects. CONCLUSION: Appropriate use of health promotion activities in relation to alcohol and tobacco use is through specially designed programs.


Assuntos
Azoospermia , Infertilidade Masculina , Humanos , Masculino , Nicotiana , Saúde Pública , Conhecimentos, Atitudes e Prática em Saúde , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia , Consumo de Bebidas Alcoólicas/efeitos adversos , Consumo de Bebidas Alcoólicas/epidemiologia
12.
Adv Gerontol ; 35(4): 485-491, 2022.
Artigo em Russo | MEDLINE | ID: mdl-36401856

RESUMO

According to the Russian Society of Urologists, the frequency of infertility in marriage in the Russian Federation is 8-17,2%; half of the cases are associated with the male factor. Among the risk factors for the development of male infertility, there are mainly medical reasons, lifestyle factors and negative environmental factors. Despite the fact that the problem of infertility is addressed by men of different ages, from youth to the elderly, the correction of risk factors is usually carried out without taking into account the age of the patient, which makes it difficult to develop a personalized strategy for the treatment or prevention of infertility. The aim of the study was to study the structure of the leading risk factors for the development of infertility in men from infertile couples, to identify and characterize their age-associated features. The analysis of the medical histories of 1 198 men from infertile couples and the collection of information on all available risk factors for infertility were carried out. The analysis of age features was performed by dividing the sample into 5 age groups: 1st (n=271) - men ≤29,9 years; 2nd (n=415) - 30-34,9 years; 3rd (n=291) - 35-39,9 years; 4th (n=141) - 40-44,9 years; 5th (n=80) - ≥45 years. It was shown that in the general sample of medical causes, factors associated with chronic inflammation predominate: sexually transmitted infections (STIs) - 54%; prostatitis - 32%; obesity - 27%; from non-medical: alcohol - 73%; stress - 47%; smoking - 41%. With increasing age, the frequency of obesity, STIs, prostatitis, hepatitis B/C, mumps increases statistically significantly, while the most unfavorable group of men is 40-45 years old for factors such as STIs, hepatitis B/C and mumps, and the group of men over 45 years old for factors such as obesity and prostatitis.


Assuntos
Hepatite B , Infertilidade Masculina , Caxumba , Prostatite , Infecções Sexualmente Transmissíveis , Humanos , Masculino , Idoso , Adolescente , Prostatite/complicações , Caxumba/complicações , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia , Fatores de Risco , Infecções Sexualmente Transmissíveis/complicações , Obesidade/complicações , Hepatite B/complicações
13.
JBRA Assist Reprod ; 26(4): 627-630, 2022 11 09.
Artigo em Inglês | MEDLINE | ID: mdl-35916450

RESUMO

Infertility is a major problem in modern society that affects a significant number of couples around the world. Heavy metals and a number of other factors have been causally linked to infertility. The aim of this study was to determine the effect of heavy metals lead, cadmium, and copper on the epidemiology of male and female infertility. Searches for articles published from 1982 to 2020 using related keywords such as male and female infertility and heavy metals were performed in scientific databases PubMed, Google Scholar, Science Direct, and others. The results showed that, in recent years, the number of infertile individuals has increased. Various environmental, occupational, and genetic factors have been described as potential causes. Heavy metals lead, cadmium, and copper cause infertility in couples through various mechanisms, such as changes in sperm motility factors, decreased semen quality, or effects on the egg. Exposure to physical phenomena such as radiation (ionized or microwave) and heat; stress and mental disorders; chemicals from cigarettes, respiratory pollutants (lead), insecticides and pesticides; anesthetic gases; and mercury and cytotoxic drugs may also contribute to the onset of infertility.


Assuntos
Infertilidade Feminina , Infertilidade Masculina , Metais Pesados , Masculino , Feminino , Humanos , Cádmio/toxicidade , Análise do Sêmen , Cobre , Infertilidade Feminina/induzido quimicamente , Infertilidade Feminina/epidemiologia , Motilidade dos Espermatozoides , Metais Pesados/toxicidade , Infertilidade Masculina/induzido quimicamente , Infertilidade Masculina/epidemiologia
14.
Andrology ; 10(7): 1250-1271, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35793270

RESUMO

BACKGROUND: The environment plays a key role in male infertility, changing the incidence in various populations, and pesticides are one of the most studied hazards. The use of the latter has never decreased, jeopardizing the safety of workers and the general population. OBJECTIVE: Our purpose was to summarize the results of studies discussing the association between pesticides and male fertility. METHODS: A comprehensive literature search was performed through MEDLINE via PubMed, Scopus, and Web of Science. Only human studies were considered. Semen parameters and DNA integrity were considered to evaluate the effect of pesticides on men. RESULTS: A total of 64 studies that investigated their impact in terms of semen parameters (51 studies) and chromatin and DNA integrity (25 studies) were included. The most frequently affected parameters were total sperm count, sperm motility, and sperm morphology, although a reduction in ejaculate volume and concentration occur in several cases. A tangible worsening of semen quality was associated with organochlorines and organophosphates. Furthermore, pesticide exposure, especially pyrethroids, was related to a higher DNA fragmentation index and chromosome aneuploidy in most articles. CONCLUSION: The epidemiological evidence supports the association between pesticides and male fertility for workers and the exposed population in terms of semen quality, DNA fragmentation, and chromosome aneuploidy.


Assuntos
Infertilidade Masculina , Exposição Ocupacional , Praguicidas , Piretrinas , Aneuploidia , Cromatina , DNA , Fertilidade , Humanos , Infertilidade Masculina/induzido quimicamente , Infertilidade Masculina/epidemiologia , Masculino , Exposição Ocupacional/efeitos adversos , Organofosfatos , Praguicidas/toxicidade , Piretrinas/farmacologia , Sêmen , Análise do Sêmen , Contagem de Espermatozoides , Motilidade dos Espermatozoides , Espermatozoides
15.
Breast Cancer Res ; 24(1): 29, 2022 05 17.
Artigo em Inglês | MEDLINE | ID: mdl-35578306

RESUMO

PURPOSE: Breast cancer is uncommon in men and its aetiology is largely unknown, reflecting the limited size of studies thus far conducted. In general, number of children fathered has been found a risk factor inconsistently, and infertility not. We therefore investigated in a case-control study, the relation of risk of breast cancer in men to infertility and number of children. PATIENTS AND METHODS: We conducted a national case-control study in England and Wales, interviewing 1998 cases incident 2005-17 and 1597 male controls, which included questions on infertility and offspring. RESULTS: Risk of breast cancer was statistically significantly associated with male-origin infertility (OR = 2.03 (95% confidence interval (CI) 1.18-3.49)) but not if a couple's infertility had been diagnosed as of origin from the female partner (OR = 0.86 (0.51-1.45)). Risk was statistically significantly raised for men who had not fathered any children (OR = 1.50 (95% CI 1.21-1.86)) compared with men who were fathers. These associations were statistically significantly present for invasive tumours but not statistically significant for in situ tumours. CONCLUSION: Our data give strong evidence that risk of breast cancer is increased for men who are infertile. The reason is not clear and needs investigation.


Assuntos
Neoplasias da Mama Masculina , Infertilidade Masculina , Neoplasias da Mama Masculina/epidemiologia , Estudos de Casos e Controles , Inglaterra/epidemiologia , Humanos , Infertilidade Masculina/epidemiologia , Masculino , Fatores de Risco , País de Gales/epidemiologia
16.
J Assist Reprod Genet ; 39(5): 1125-1134, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35296953

RESUMO

PURPOSE: To assess the possible variations in semen quality during the last 20 years in Córdoba, Argentina, and to identify possible causal lifestyle or genitourinary factors. METHODS: Retrospective study of 23,130 patients attending an andrology laboratory. The 20-year period (2001-2020) was divided into four quinquenniums. Seminal parameters (sperm concentration, motility, morphology, viability, and membrane functional integrity) were classified as normal or abnormal according to WHO, and results were expressed as percentage of patients abnormal for each parameter per quinquennium. In addition, the percentage of patients per quinquennium exposed to the different risk factors (daily alcohol and/or tobacco consumption; occupational exposure to heat or toxics; history of parotitis or varicocele; and high body mass index, BMI) was reported. RESULTS: Patients included in our study did not show impairment in seminal quality over time. Beyond a transient decrease in normozoospermia in the second and third quinquennium, possibly explained by a parallel increase in teratozoospermia, other important parameters of the spermogram did not change. In fact, abnormalities in sperm concentration (oligozoospermia), total sperm count, viability and response to hypoosmotic test showed a decreasing trend over time. On the other hand, parotitis, varicocele, morbid obesity and regular exposition to heat/toxics were the factors more frequently associated with semen abnormalities; the last two increased their frequency over the study period. CONCLUSION: The population included in this study did not show a clear impairment in semen quality during the last 20 years. The decreasing patterns found were associated with high BMI and exposure to heat/toxics.


Assuntos
Infertilidade Masculina , Parotidite , Varicocele , Argentina/epidemiologia , Humanos , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia , Masculino , Parotidite/complicações , Estudos Retrospectivos , Sêmen/fisiologia , Análise do Sêmen , Contagem de Espermatozoides , Motilidade dos Espermatozoides/fisiologia , Espermatozoides , Varicocele/complicações
17.
Int J Mol Sci ; 23(3)2022 Jan 29.
Artigo em Inglês | MEDLINE | ID: mdl-35163492

RESUMO

The role of environmental factors in influencing health status is well documented. Heavy metals, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls, dioxins, pesticides, ultrafine particles, produced by human activities put a strain on the body's entire defense system. Therefore, together with public health measures, evidence-based individual resilience measures are necessary to mitigate cancer risk under environmental stress and to prevent reproductive dysfunction and non-communicable diseases; this is especially relevant for workers occupationally exposed to pollutants and/or populations residing in highly polluted areas. The Mediterranean diet is characterized by a high intake of fruits and vegetables rich in flavonoids, that can promote the elimination of pollutants in tissues and fluids and/or mitigate their effects through different mechanisms. In this review, we collected evidence from pre-clinical and clinical studies showing that the impairment of male fertility and gonadal development, as well as cancers of reproductive system, due to the exposure of organic and inorganic pollutants, may be counteracted by flavonoids.


Assuntos
Dieta Mediterrânea , Poluentes Ambientais/toxicidade , Flavonoides/farmacologia , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/prevenção & controle , Neoplasias/epidemiologia , Neoplasias/prevenção & controle , Animais , Flavonoides/química , Humanos , Masculino , Fatores de Risco
18.
Andrology ; 10(1): 105-110, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34331520

RESUMO

BACKGROUND: Studies on immunological infertility after inguinal hernia correction are few and not very representative. Anti-sperm antibodies have been shown to reduce male fertility. Although the extent of infertility due to anti-sperm antibodies alone is not very clear, data indicates that about 8%-10% of infertile patients have immunological infertility DESIGN: This retrospective study includes all infertile male patients (n = 2258) who underwent mixed antiglobulin reaction tests and urologic examination from 2000 to 2020. Sperm quality (assessed by the number of spermatozoa, their motility, vitality, and normal form) was also evaluated. Among these patients, 191 had previously undergone unilateral or bilateral inguinal hernia surgery repair. The aim of the study is to evaluate if there is a higher incidence of positive mixed antiglobulin reaction test among patients undergoing inguinal hernioplasty compared to the unselected infertile population. RESULTS: Anti-sperm antibodies would seem to increase in both patients who performed general andrological surgery and groin hernia correction, respectively 3.48 (95% Confidence Interval: 1.70-7.10; p < 0.001) and 2.45 (95% Confidence Interval: 1.01-5.99; p < 0.05) times more than the unselected infertile population. CONCLUSIONS: Mixed antiglobulin reaction test could be useful in patients undergone previous scrotal surgery or hernia correction men, to avoid false unexplained infertility diagnoses and to direct the couple to assisted reproductive technology procedures. Basal evaluation of spermatozoa does not actually consider andrological surgery as an indication to autoimmunity investigation.


Assuntos
Doenças Autoimunes/imunologia , Hérnia Inguinal/cirurgia , Herniorrafia/efeitos adversos , Infertilidade Masculina/imunologia , Complicações Pós-Operatórias/imunologia , Adulto , Autoanticorpos/imunologia , Doenças Autoimunes/epidemiologia , Humanos , Incidência , Infertilidade Masculina/epidemiologia , Masculino , Complicações Pós-Operatórias/epidemiologia , Período Pós-Operatório , Estudos Retrospectivos , Análise do Sêmen , Espermatozoides/imunologia
19.
Br J Haematol ; 196(1): 110-115, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34462914

RESUMO

The outcome of patients with Hodgkin lymphoma (HL) has improved significantly in recent years, and now attention is increasingly being focused on the well-being of these young patients. This study aimed to analyse the influence of HL and its treatment on the spermatogenic status of 46 male HL patients with available spermiograms, treated between 2008 and 2016. Analysing prognostic factors at diagnosis, we found that the number of spermatozoa was reduced in stage III-IV; motility and vitality were reduced in stage III-IV and in the presence of B symptoms; and abnormal forms were increased in patients with elevated erythrocyte sedimentation rate (ESR) and low albumin. Furthermore, we found that haematopoietic stem cell transplantation (HSCT) was associated with a severe impairment of fertility in terms of sperm motility. In HL-treated patients who did not undergo HSCT we found a statistically significantly improved fertility in terms of motility. In this study, we found that HSCT induced infertility in the majority of male patients with HL, but that first-line treatment could improve the impaired fertility status caused by disease. Further studies are needed in larger case series to investigate risk factors for impaired fertility at HL diagnosis and after treatment.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Doença de Hodgkin/complicações , Doença de Hodgkin/epidemiologia , Infertilidade Masculina/epidemiologia , Infertilidade Masculina/etiologia , Adolescente , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Bleomicina/efeitos adversos , Bleomicina/uso terapêutico , Terapia Combinada , Dacarbazina/efeitos adversos , Dacarbazina/uso terapêutico , Gerenciamento Clínico , Suscetibilidade a Doenças , Doxorrubicina/efeitos adversos , Doxorrubicina/uso terapêutico , Transplante de Células-Tronco Hematopoéticas , Doença de Hodgkin/diagnóstico , Doença de Hodgkin/tratamento farmacológico , Humanos , Infertilidade Masculina/diagnóstico , Masculino , Estadiamento de Neoplasias , Vigilância em Saúde Pública , Análise do Sêmen , Motilidade dos Espermatozoides , Resultado do Tratamento , Vimblastina/efeitos adversos , Vimblastina/uso terapêutico , Adulto Jovem
20.
Fertil Steril ; 117(1): 144-152, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34863518

RESUMO

OBJECTIVE: To identify, besides maternal age and the number of previous pregnancy losses, additional characteristics of couples with unexplained recurrent pregnancy loss (RPL) that improve the prediction of an ongoing pregnancy. DESIGN: Hospital-based cohort study in couples who visited specialized RPL units of two academic centers between 2012 and 2020. SETTING: Two academic centers in the Netherlands. PATIENTS: Clinical data from 526 couples with unexplained RPL were used in this study. INTERVENTION(S): None. MAIN OUTCOME MEASURES: The final model to estimate the chance of a subsequent ongoing pregnancy was determined using a backward selection process and internally validated using bootstrapping. Model performance was assessed in terms of calibration and discrimination (area under the receiver operating characteristic curve). RESULTS: Subsequent ongoing pregnancy was achieved in 345 of 526 couples (66%). The number of previous pregnancy losses, maternal age, paternal age, maternal body mass index, paternal body mass index, maternal smoking status, and previous in vitro fertilization/intracytoplasmic sperm injection treatment were predictive of the outcome. The optimism-corrected area under the receiver operating characteristic curve was 0.63 compared with 0.57 when using only the number of previous pregnancy losses and maternal age. CONCLUSIONS: The identification of additional predictors of a subsequent ongoing pregnancy after RPL, including male characteristics, is significant for both clinicians and couples with RPL. At the same time, we showed that the predictive ability of the current model is still limited and more research is warranted to develop a model that can be used in clinical practice.


Assuntos
Aborto Habitual/diagnóstico , Infertilidade/diagnóstico , Resultado da Gravidez , Aborto Habitual/epidemiologia , Aborto Habitual/terapia , Adulto , Estudos de Coortes , Características da Família , Feminino , Humanos , Infertilidade/epidemiologia , Infertilidade/etiologia , Infertilidade/terapia , Infertilidade Feminina/complicações , Infertilidade Feminina/diagnóstico , Infertilidade Feminina/epidemiologia , Infertilidade Masculina/complicações , Infertilidade Masculina/diagnóstico , Infertilidade Masculina/epidemiologia , Masculino , Pessoa de Meia-Idade , Modelos Estatísticos , Países Baixos/epidemiologia , Gravidez , Resultado da Gravidez/epidemiologia , Prognóstico , Adulto Jovem
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