RESUMO
In 2007 the Nordic group came to the following unanimous conclusions: In general, hormonal treatment is not recommended, considering the poor immediate results and the possible long-term adverse effects on spermatogenesis. Thus, surgery is to be preferred. However, defective mini puberty inducing insufficient gonadotropin secretion is one of the most common causes of nonobstructive azoospermia in men suffering from congenital isolated unilateral or bilateral cryptorchidism. The extent of alteration in the unilateral undescended testis correlate with the contralateral descended testis, indicating that unilateral cryptorchidism is a bilateral disease. Idiopathic central hypogonadism explains the phenomenon of defective mini puberty in otherwise healthy cryptorchid boys. We therefore recommend hormonal treatment for cryptorchid boys with defective mini puberty. Gonadotropin releasing hormone agonist (GnRHa) treatment following surgery to correct cryptorchidism restores mini puberty via endocrinological and transcriptional effects and prevents adult infertility in most cases. Several genes are important for central hypogonadotropic hypogonadism in mammals, including many that are transcribed in both the brain and testis. At the molecular level, there is no convincing evidence that heat shock is responsible for the observed pathological testicular changes. Thus, impaired transformation of gonocytes is not the result of temperature stress but rather a hormonal imbalance. Cryptorchidism should therefore be considered a serious andrological problem that cannot be successfully treated by early orchidopexy alone.
Assuntos
Azoospermia , Criptorquidismo , Hipogonadismo , Infertilidade Masculina , Masculino , Animais , Humanos , Testículo/patologia , Criptorquidismo/tratamento farmacológico , Criptorquidismo/cirurgia , Criptorquidismo/genética , Infertilidade Masculina/prevenção & controle , Infertilidade Masculina/genética , Fertilidade , Hipogonadismo/tratamento farmacológico , MamíferosRESUMO
About 8-12% of couples experience infertility, with male infertility being the cause in 50% of cases. Several congenital and acquired conditions, including chronic diseases and their treatments, can contribute to male infertility. Prostate cancer incidence increases annually by roughly 3%, leading to an increment in cancer treatments that have adverse effects on male fertility. To preserve male fertility post-cancer survival, conventional cancer treatments use sperm cryopreservation and hormone stimulation. However, these techniques are invasive, expensive, and unsuitable in prepubertal patients lacking mature sperm cells. Alternatively, nutritional therapies enriched with bioactive compounds are highlighted as non-invasive approaches to prevent male infertility that are easily implementable and cost-effective. In fact, curcumin and resveratrol are two examples of bioactive compounds with chemo-preventive effects at the testicular level. In this article, we summarize and discuss the literature regarding bioactive compounds and their mechanisms in preventing cancer treatment-induced male infertility. This information may lead to novel opportunities for future interventions.
Assuntos
Preservação da Fertilidade , Infertilidade Masculina , Neoplasias , Humanos , Masculino , Preservação da Fertilidade/métodos , Sêmen , Infertilidade Masculina/induzido quimicamente , Infertilidade Masculina/prevenção & controle , Criopreservação/métodos , Testículo , Neoplasias/complicações , Neoplasias/tratamento farmacológicoRESUMO
In varicocele, the main cause of sperm DNA damage is oxidative stress (OS). Resveratrol, a polyphenol with antioxidant properties, can protect cells from injuries caused by OS. We investigated the benefits of resveratrol against reproductive damage caused by experimental varicocele induced from peripuberty. Eighty peripubertal male rats were distributed into 4 groups: sham-control (S), varicocele (V), resveratrol (R) and varicocele treated with resveratrol (VR). Varicocele was induced through the partial ligature of the left renal vein. Resveratrol was given in a daily dose of 300 mg/kg body weight (gavage). Sperm samples were collected at 100 days of age for vitality, DNA fragmentation and chromatin protamination evaluations. OS analyses were carried out. Rats from all groups were mated with healthy primiparous females for evaluation of reproductive capacity and embryonic quality. The V group showed reduction of sperm vitality, altered chromatin protamination and sperm DNA integrity and high levels of OS. The VR group showed an improvement of oxidative status, sperm vitality, DNA integrity and chromatin structure, and an enhancement in the gestational index and embryonic quality. Therefore, we showed in this experimental model that resveratrol is a promising nutraceutical adjuvant and should be deeply studied to mitigate subfertility in varicocele.
Assuntos
Infertilidade Masculina , Varicocele , Animais , Cromatina , DNA , Fragmentação do DNA , Feminino , Humanos , Infertilidade Masculina/tratamento farmacológico , Infertilidade Masculina/etiologia , Infertilidade Masculina/prevenção & controle , Masculino , Ratos , Ratos Wistar , Resveratrol/farmacologia , Resveratrol/uso terapêutico , Contagem de Espermatozoides , Motilidade dos Espermatozoides , Espermatozoides , Varicocele/complicações , Varicocele/tratamento farmacológicoAssuntos
Genitália Masculina/imunologia , Infertilidade Masculina/imunologia , Inflamação/imunologia , Autoimunidade , Genitália Masculina/patologia , Humanos , Infertilidade Masculina/patologia , Infertilidade Masculina/prevenção & controle , Inflamação/complicações , Inflamação/patologia , MasculinoRESUMO
High-fat diet is associated with hypercholesterolemia and seminal alterations in White New Zealand rabbits. We have previously reported disorders in the development of the manchette-acrosome complex during spermiogenesis and decreased testicular efficiency in hypercholesterolemic rabbits. On the other hand, olive oil incorporated into the diet improves cholesterolemia and semen parameters affected in hypercholesterolemic rabbits. In this paper, we report the recovery-with the addition of olive oil to diet-from the sub-cellular mechanisms involved in the shaping of the sperm cell and testicular efficiency altered in hypercholesterolemic rabbits. Using morphological (structural, ultra-structural and immuno-fluorescence techniques) and cell biology techniques, a reorganization of the manchette and related structures was observed when olive oil was added to the high-fat diet. Specifically, actin filaments, microtubules and lipid rafts-abnormally distributed in hypercholesterolemic rabbits-were recovered with dietary olive oil supplementation. The causes of the decline in sperm count were studied in the previous report and here in more detail. These were attributed to the decrease in the efficiency index and also to the increase in the apoptotic percentage in testis from animals under the high-fat diet. Surprisingly, the addition of olive oil to the diet avoided the sub-cellular, efficiency and apoptosis changes observed in hypercholesterolemic rabbits. This paper reports the positive effects of the olive oil addition to the diet in the recovery of testicular efficiency and normal sperm shaping, mechanisms altered by hypercholesterolemia.
Assuntos
Acrossomo/efeitos dos fármacos , Dieta Hiperlipídica/efeitos adversos , Hipercolesterolemia/tratamento farmacológico , Azeite de Oliva/administração & dosagem , Doenças Testiculares/prevenção & controle , Acrossomo/patologia , Animais , Modelos Animais de Doenças , Hipercolesterolemia/induzido quimicamente , Hipercolesterolemia/complicações , Infertilidade Masculina/etiologia , Infertilidade Masculina/prevenção & controle , Masculino , Microdomínios da Membrana/efeitos dos fármacos , Azeite de Oliva/farmacologia , Coelhos , Contagem de Espermatozoides , Espermatogênese/efeitos dos fármacos , Doenças Testiculares/etiologia , TestículoRESUMO
ABSTRACT Alcohol is the most commonly consumed substance in the world. The objective of this study was to evaluate the influence of alcoholic beverages on male reproduction and possible alterations in their offspring. The mice were divided into 4 groups: beer, wine, cachaça (a type of sugarcane rum), with ethanol concentrations of 1.9 g/kg, and control group treated with PBS. The treatment period was 35 days. The animals which received cachaça, demonstrated significant weight loss in the testes and epididymis. The alcoholic beverages promoted significant testosterone level and fertilization index diminution, and morphological alterations in the spermatozoa. The beer group presented decreased implantation sites and a high frequency of dominant lethal. The number of reabsorptions in the wine group was increased. The fermented beverages presented higher potential to induce visceral malformations, while the cachaça caused fetal skeletal malformations. The cachaça treated group presented a negative impact on semen quality and fertilization potential. The treatment with different alcoholic beverages, during spermatogenesis, demonstrated contrasting degrees of induction of toxic effects, interfering in a general aspect in male reproductive performance, fetal viability during intrauterine life, and birth defects. From the data, it is possible to infer that the distillated beverage caused more harmful effects to reproduction in this study.
Assuntos
Animais , Masculino , Feminino , Camundongos , Reprodução/efeitos dos fármacos , Vinho/efeitos adversos , Bebidas Alcoólicas/análise , Fertilização , Cerveja/efeitos adversos , Disfunção Erétil/fisiopatologia , Infertilidade Masculina/prevenção & controleRESUMO
This study aimed to investigate protective effect of Momordica cochinchinensis (MC) aril extract on adverse reproductive parameters of male rat induced with valproic acid (VPA) commonly used in treatment for antiepileptic diseases. Male Wistar rats were divided into 6 groups (control, VPA, 200 mg/kg BW of PE only, and 50, 100, 200 mg/kg BW MC+VPA, respectively). Animals were pretreated with aqueous MC extract for 23 days before co-administered with VPA induction for 10 days. At the end of experiment, all male reproductive parameters and testicular histology were examined. The results showed all doses of PE significantly protect the decrease the weights of epididymis and seminal vesicle but not of body and testicular weights. MC extract also increased sperm concentration and seminiferous tubular diameters in MC+VPA co-administrative groups. Moreover, testicular histology of MC+VPA groups showed significant declining of testicular histopathologies as compared to VPA group. It was concluded that M. Cochinchinensis aril extract can prevent adverse male reproductive parameters and testicular damage induced with VPA.
El objetivo fue investigar el efecto protector del extracto de arilo de Momordica cochinchinensis (MC) sobre los parámetros reproductivos adversos de la rata macho inducida con ácido valproico (AV) que se utiliza comúnmente en el tratamiento de enfermedades epilépticas. Las ratas se dividieron en 6 grupos (control, AV, 200 mg/kg por peso corporal de PE solamente, y 50, 100, 200 mg/kg por peso corporal MC+AV, respectivamente). Los animales fueron tratados previamente con extracto acuoso MC durante 23 días, antes de la administración de AV durante 10 días. Al término del experimento, se examinaron todos los parámetros reproductivos masculinos y la histología testicular. Los resultados indicaron que todas las dosis de PE protegen de manera significativa la disminución de los pesos de epidídimo y vesículas seminales, pero no de peso corporal y testicular. El extracto de MC también aumentó la concentración de espermatozoides y los diámetros de los túbulos seminíferos en los grupos de administración con MC+AV. Por otra parte, la histología testicular de los grupos MC+AV mostró una disminución significativa de histopatologías testiculares en comparación con el grupo AV. En conclusión, el extracto de arilo M. cochinchinensis puede prevenir la aparición de parámetros reproductivos masculinos negativos y los daños testiculares inducidos con AV.
Assuntos
Animais , Masculino , Ratos , Genitália Masculina/patologia , Infertilidade Masculina/prevenção & controle , Momordica/química , Extratos Vegetais/administração & dosagem , Ácido Valproico/efeitos adversos , Infertilidade Masculina/induzido quimicamente , Ratos Wistar , Doenças Testiculares/induzido quimicamente , Testículo/patologiaRESUMO
The aim of this study was to investigate the protective action of resveratrol against the reproductive damage caused by left-sided experimental varicocele. There was a reduction of testicular major axis in the varicocele group when compared with the other groups; the testicular volume was reduced in varicocele group in comparison to the sham-control and resveratrol groups. The frequency of morphologically abnormal sperm was higher in varicocele and varicocele treated with resveratrol groups than in sham-control and resveratrol groups. The frequency of sperm with 100% of mitochondrial activity and normal acrosome integrity were lower in varicocele group than in varicocele treated with resveratrol, sham-control and resveratrol groups. Sperm motility was also reduced in varicocele group than in other groups. The sperm DNA fragmentation was higher in varicocele group than in other groups. Testicular levels of malondialdehyde were higher in varicocele and varicocele treated with resveratrol groups. The varicocele and varicocele treated with resveratrol groups had a significantly higher frequency of TUNEL-positive cells than sham-control and resveratrol groups; however, immunolabeling of the testes from varicocele treated with resveratrol group showed a lower number of apoptotic germ cells in comparison with the left testis of rats of the varicocele group. Reproductive alterations produced by varicocele from peripuberty were reduced by resveratrol in adulthood. Resveratrol should be better investigated as an adjuvant in the treatment of varicocele. Daily administration of resveratrol to rats with varicocele from peripuberty improves sperm quality in the adulthood.
Assuntos
Infertilidade Masculina/prevenção & controle , Puberdade/fisiologia , Reprodução/fisiologia , Motilidade dos Espermatozoides/efeitos dos fármacos , Estilbenos/farmacologia , Testículo/fisiologia , Varicocele , Animais , Anti-Inflamatórios não Esteroides/farmacologia , Masculino , Ratos , Ratos Wistar , Resveratrol , Testículo/efeitos dos fármacosRESUMO
PURPOSE: We evaluated testicular morphology and spermatozoid parameters in spontaneously hypertensive rats treated with enalapril. MATERIALS AND METHODS: Spontaneously hypertensive rats were assigned to a hypertensive nontreated group and a hypertensive enalapril treated group. Wistar-Kyoto normotensive rats served as controls. Systolic blood pressure was measured weekly. Spermatozoid concentration, motility and viability were determined in samples collected from the epididymal tail. Testicular morphology was analyzed by morphometric methods. All data were compared using ANOVA and the Tukey post test with p <0.05 considered significant. RESULTS: Systolic blood pressure in the enalapril treated group was similar to that in controls but lower than in the nontreated group. Sperm concentration in the enalapril treated group was similar to that in controls and greater than in the nontreated group. Testicular vascular volumetric density decreased in the nontreated group while in enalapril treated rats this parameter was similar to that in controls. Volumetric density of the seminiferous epithelium in the enalapril treated group was higher than in the nontreated group and controls, indicating a possibly positive effect of enalapril on spermatogenesis. CONCLUSIONS: In this animal model hypertension caused morphological changes in the testis and upon spermatozoid production. Enalapril treatment partially protected the testicles from these alterations, restoring normal spermatozoid production.
Assuntos
Enalapril/farmacologia , Hipertensão/tratamento farmacológico , Infertilidade Masculina/prevenção & controle , Espermatozoides/citologia , Testículo/patologia , Inibidores da Enzima Conversora de Angiotensina/farmacologia , Animais , Pressão Sanguínea , Modelos Animais de Doenças , Hipertensão/complicações , Hipertensão/fisiopatologia , Infertilidade Masculina/etiologia , Infertilidade Masculina/patologia , Masculino , Ratos , Ratos Endogâmicos SHR , Ratos Endogâmicos WKY , Contagem de Espermatozoides , Espermatozoides/efeitos dos fármacos , Testículo/efeitos dos fármacos , Testículo/metabolismoRESUMO
As medical advances improve survival, reduce disease-related morbidity, and improve quality of life, reproductive issues will take higher priority in the sickle cell disease (SCD) community. A wide variety of topics are addressed in this chapter, including fertility, gonadal failure, erectile dysfunction, and menstrual issues in SCD. Etiologies of impaired male fertility are multifactorial and include hypogonadism, erectile dysfunction, sperm abnormalities, and complications of medical therapies. Much less is known about the prevalence and etiology of infertility in women with SCD. Other reproductive issues in women included in this review are pain and the menstrual cycle, contraception, and preconception counseling. Finally, long-term therapies for SCD and their impact on fertility are presented. Transfusional iron overload and gonadal failure are addressed, followed by options for fertility preservation after stem cell transplantation. Focus is placed on hydroxyurea therapy given its benefits and increasing use in SCD. The impact of this agent on spermatogenesis, azoospermia, and the developing fetus is discussed.
Assuntos
Anemia Falciforme/terapia , Fertilidade , Infertilidade Feminina/prevenção & controle , Infertilidade Masculina/prevenção & controle , Anemia Falciforme/complicações , Antidrepanocíticos/efeitos adversos , Antidrepanocíticos/uso terapêutico , Feminino , Humanos , Hidroxiureia/efeitos adversos , Hidroxiureia/uso terapêutico , Infertilidade Feminina/etiologia , Infertilidade Masculina/etiologia , Sobrecarga de Ferro/etiologia , Sobrecarga de Ferro/prevenção & controle , Masculino , Transplante de Células-Tronco/efeitos adversos , Reação TransfusionalRESUMO
To investigate the effect of tert-butylhydroquinone (tBHQ) on scrotal heat-induced damage in mice testes, 8-week-old mice were divided into 6 groups and administered with or without tBHQ through diet (10 mg/g), intraperitoneal injection (100 mg/kg body weight), or intratestis injection (12.5 mg/kg body weight), respectively. After single scrotal heat exposure (42 °C for 25 min), trunk blood and testes were collected 48 h later. The testes from diet and intraperitoneal tBHQ-treated mice showed more compact interstitial cells and less germ cell loss in the seminiferous epithelium compared with their corresponding non-tBHQ groups. However, intratestis tBHQ treatment showed no marked difference relative to the non-treatment group. In addition, pre-treatment of tBHQ caused lower testosterone concentrations and reduced expression of cytochrome P450 17α-hydroxylase/17,20-lyase (CYP 17) compared to the corresponding non-tBHQ groups. The results indicated that scrotal heat-induced structural damage was partly prevented by pre-treatment of tBHQ, which could be used as an effective antioxidant for preventing scrotal heat-mediated male infertility.
Assuntos
Antioxidantes/farmacologia , Temperatura Alta/efeitos adversos , Hidroquinonas/farmacologia , Infertilidade Masculina/prevenção & controle , Testículo/efeitos dos fármacos , Animais , Antioxidantes/uso terapêutico , Hidroquinonas/uso terapêutico , Infertilidade Masculina/etiologia , Masculino , Camundongos , Espermatozoides/efeitos dos fármacos , Esteroide 17-alfa-Hidroxilase/genética , Esteroide 17-alfa-Hidroxilase/metabolismo , Testículo/metabolismo , Testículo/patologia , Testosterona/sangueRESUMO
Arsenic is a testicular environmental toxic. Melatonin (Me), being a potent antioxidant, may reduce the damage caused by arsenic in male fertility. The effects of daily oral exposure of Sodium Arsenite (As; 7.0 mg/kg/bw); Melatonin (Me, 10.0 mg/kg/bw); Me (10.0 mg/kg/bw) plus As (7.0 mg/kg/bw), and Negative Control (NaCl 0.9 percent) in male CF-1 adult mice were assessed in acute (8.3 days), chronic (33.2 days) and recovery (66,4 days) of testicular damage. We evaluated changes in testicular weight and histopathological, morphometric measurements, expression of COX-2 and Androgen Receptor (AR) antigens and lipid peroxidation levels. Treatment resulted in decreased tubular diameter and AR expression, and increased: interstitial area, luminal diameter, COX-2 expression levels and of lipid peroxidation. Co-administration of As and Me partially decreased germ cell degeneration and AR expression levels, improving testicular histopathological parameters. These results indicate that As causes toxicity and testicular germ cell degeneration by induction of oxidative stress. Me partially protects from this damage in mouse testis, acting as scavenger of oxygen radical species.
El arsénico es un tóxico testicular ambiental. La melatonina (Me), que es un potente antioxidante, puede reducir el daño causado por el arsénico en la fertilidad masculina. Se evaluaron los efectos de la exposición oral diaria de arsenito de sodio (As; 7,0 mg/kg/peso corporal), melatonina (Me, 10,0 mg/kg/p.c.); Me (10,0 mg/kg/p.c.) más As (7,0 mg/kg/pc) y el Control Negativo (NaCl 0,9 por ciento) en ratones adultos CF-1 machos, a los 8,3 días (exposición aguda), 33,2 días (crónica) y 66,4 días (recuperación) del daño testicular. Se evaluaron los cambios en el peso testicular y mediciones morfométricas, histopatológicas, expresión de COX-2, del receptor de andrógeno (AR) y los niveles de peroxidación de lípidos. El tratamiento con As resultó en disminución del diámetro tubular y la expresión de AR, y el aumento de: área intersticial, diámetro luminal, los niveles de expresión de COX-2 y peroxidación lipídica. La co-administración de As y Me disminuyó parcialmente la degeneración de células germinales, el aumento de los niveles de expresión de AR y hubo mejoría de los parámetros histopatológicos testiculares. Estos resultados indican que As es tóxico y causa degeneración de células germinales por inducción de estrés oxidativo. Me protege parcialmente este daño en los testículos de ratones, actuando como eliminador de especies radicalarias del oxígeno.
Assuntos
Masculino , Animais , Camundongos , Antioxidantes/administração & dosagem , Arsenitos/toxicidade , Espermatogênese , Infertilidade Masculina/induzido quimicamente , Melatonina/administração & dosagem , Infertilidade Masculina/prevenção & controle , Peroxidação de Lipídeos , Estresse Oxidativo , Receptores Androgênicos , TestículoRESUMO
The aim of the present study was to investigate the effects of long-term grape juice concentrate (GJC) consumption, in two dosages, on the reproductive parameters of cadmium-exposed male rats. The effects of the concentrate on body mass gain, plasma testosterone levels, reproductive organ weights, daily sperm production, sperm morphology, testis histopathological and histomorphometrical parameters, and testicular antioxidant markers were investigated. Wistar rats (n 54) were distributed into six groups: CdCl2; cadmium and grape juice I (1·18 g/kg per d); cadmium and grape juice II (2·36 g/kg per d); grape juice I (1·18 g/kg per d); grape juice II (2·36 g/kg per d); control. A single dose of CdCl2 (1·2 mg/kg body weight (BW)) was injected intraperitoneally and the grape juice was administered orally for 56 d. The results indicated that cadmium changed all reproductive and antioxidant parameters. At dosage I (1·18 g/kg BW), GJC consumption did not show the effects against cadmium-induced damages. In contrast, at dosage II (2·36 g/kg BW), the GJC improved the gonadosomatic index (P= 0·003), serum testosterone levels (P= 0·001), the relative weight of epididymis (P= 0·013) and ventral prostate (P= 0·052), the percentage of normal sperm (P= 0·001), and histopathological and histomorphometrical parameters. In addition, at this dosage, normalisation of the enzymatic activity of superoxide dismutase (P= 0·001) and of testicular levels of glutathione (P= 0·03) were observed. The parameters of the non-exposed rats did not depict significant alterations. In conclusion, the product was able to act as a protector of reproductive function against cadmium-induced damage. Such a property was expressed in a dose-dependent manner as the more effective dose was dosage II. The GJC acted possibly by antioxidant mechanisms.
Assuntos
Bebidas , Intoxicação por Cádmio/fisiopatologia , Frutas , Alimento Funcional , Infertilidade Masculina/prevenção & controle , Substâncias Protetoras/uso terapêutico , Vitis , Animais , Cloreto de Cádmio/antagonistas & inibidores , Cloreto de Cádmio/toxicidade , Epididimo/efeitos dos fármacos , Epididimo/imunologia , Epididimo/patologia , Manipulação de Alimentos , Glutationa/metabolismo , Infertilidade Masculina/etiologia , Infertilidade Masculina/metabolismo , Infertilidade Masculina/patologia , Masculino , Tamanho do Órgão/efeitos dos fármacos , Próstata/efeitos dos fármacos , Próstata/imunologia , Próstata/patologia , Substâncias Protetoras/administração & dosagem , Distribuição Aleatória , Ratos , Ratos Wistar , Espermatogênese/efeitos dos fármacos , Testículo/efeitos dos fármacos , Testículo/imunologia , Testículo/metabolismo , Testículo/patologia , Testosterona/sangueRESUMO
OBJECTIVE: The aim of this study was to investigate the possible effects of electromagnetic radiation from conventional cellular phone use on the oxidant and antioxidant status in rat blood and testicular tissue and determine the possible protective role of vitamins C and E in preventing the detrimental effects of electromagnetic radiation on the testes. MATERIALS AND METHODS: The treatment groups were exposed to an electromagnetic field, electromagnetic field plus vitamin C (40 mg/kg/day) or electromagnetic field plus vitamin E (2.7 mg/kg/day). All groups were exposed to the same electromagnetic frequency for 15, 30, and 60 min daily for two weeks. RESULTS: There was a significant increase in the diameter of the seminiferous tubules with a disorganized seminiferous tubule sperm cycle interruption in the electromagnetism-exposed group. The serum and testicular tissue conjugated diene, lipid hydroperoxide, and catalase activities increased 3-fold, whereas the total serum and testicular tissue glutathione and glutathione peroxidase levels decreased 3-5 fold in the electromagnetism-exposed animals. CONCLUSION: Our results indicate that the adverse effect of the generated electromagnetic frequency had a negative impact on testicular architecture and enzymatic activity. This finding also indicated the possible role of vitamins C and E in mitigating the oxidative stress imposed on the testes and restoring normality to the testes.
Assuntos
Antioxidantes/uso terapêutico , Ácido Ascórbico/uso terapêutico , Telefone Celular , Radiação Eletromagnética , Infertilidade Masculina/prevenção & controle , Testículo/efeitos da radiação , Vitamina E/uso terapêutico , Animais , Infertilidade Masculina/patologia , Masculino , Ratos , Testículo/patologiaRESUMO
OBJECTIVE: The aim of this study was to investigate the possible effects of electromagnetic radiation from conventional cellular phone use on the oxidant and antioxidant status in rat blood and testicular tissue and determine the possible protective role of vitamins C and E in preventing the detrimental effects of electromagnetic radiation on the testes. MATERIALS AND METHODS: The treatment groups were exposed to an electromagnetic field, electromagnetic field plus vitamin C (40 mg/kg/day) or electromagnetic field plus vitamin E (2.7 mg/kg/day). All groups were exposed to the same electromagnetic frequency for 15, 30, and 60 min daily for two weeks. RESULTS: There was a significant increase in the diameter of the seminiferous tubules with a disorganized seminiferous tubule sperm cycle interruption in the electromagnetism-exposed group. The serum and testicular tissue conjugated diene, lipid hydroperoxide, and catalase activities increased 3-fold, whereas the total serum and testicular tissue glutathione and glutathione peroxidase levels decreased 3-5 fold in the electromagnetism-exposed animals. CONCLUSION: Our results indicate that the adverse effect of the generated electromagnetic frequency had a negative impact on testicular architecture and enzymatic activity. This finding also indicated the possible role of vitamins C and E in mitigating the oxidative stress imposed on the testes and restoring normality to the testes.
Assuntos
Animais , Masculino , Ratos , Antioxidantes/uso terapêutico , Ácido Ascórbico/uso terapêutico , Telefone Celular , Radiação Eletromagnética , Infertilidade Masculina/prevenção & controle , Testículo/efeitos da radiação , Vitamina E/uso terapêutico , Infertilidade Masculina/patologia , Testículo/patologiaRESUMO
The aim of the present study was to evaluate the effects of zinc on fertility through semen parameters, testosterone level and oxidative DNA damage to spermatozoa of rats exposed to cigarette smoke. Male Wistar rats (60 days old) were divided into four groups (n = 10 per group): control, cigarette-smoking (20 cigarettes per day), zinc (zinc chloride 20 mg kg⻹ day⻹) and zinc plus cigarette-smoking (zinc chloride 20 mg kg⻹ day⻹; 20 cigarettes per day). The treatment was applied for nine weeks and the following parameters were analysed: bodyweight, wet weights of the reproductive organs and the adrenal gland, plasma testosterone concentration, testicular function (seminal analysis and daily sperm production) and sperm DNA oxidative damage. The exposure to cigarette smoke decreased testosterone concentration, the percentage of normal morphology and the motility of spermatozoa. In addition, this exposure increased sperm DNA oxidative damage. Zinc treatment protected against the toxic damage that smoking caused to spermatozoa. This study showed a correlation between smoking and possible male infertility and subfertility, and also that the majority of smoking-induced changes in spermatozoa were prevented by zinc treatment. In conclusion, zinc, an antioxidant and stimulant of cell division, can be indicated as a promising treatment in men with infertility caused by the toxic components of cigarette smoke.
Assuntos
Antioxidantes/uso terapêutico , Dano ao DNA , Suplementos Nutricionais , Infertilidade Masculina/prevenção & controle , Estresse Oxidativo , Fumar/efeitos adversos , Zinco/uso terapêutico , Animais , Cloretos/administração & dosagem , Ensaio Cometa , Infertilidade Masculina/sangue , Infertilidade Masculina/etiologia , Infertilidade Masculina/patologia , Masculino , Distribuição Aleatória , Ratos , Ratos Wistar , Análise do Sêmen , Índice de Gravidade de Doença , Fumar/sangue , Organismos Livres de Patógenos Específicos , Espermatozoides/patologia , Testosterona/sangue , Compostos de Zinco/administração & dosagemRESUMO
PURPOSE: Report the characteristics of cryopreserved semen from a cohort of male cancer patients, attitudes towards cryopreservation and outcomes of semen samples based on a 12-year cryopreservation program. MATERIAL AND METHODS: Data from 98 male cancer patients whose sperm samples were banked were evaluated. Demographic parameters, semen characteristics, destination of sperm banked samples and questionnaires answered by the patients regarding cryopreservation time were evaluated. RESULTS: The cancer diagnoses were testicle (56.1%), prostate (15.3%), Hodgkin's lymphomas (9.2%), non-Hodgkin's lymphomas (7.1%), leukemia (3.1%) and other malignancies (9.2%). The patients with testicular cancer presented lower sperm concentration (p < 0.001); however, there were no differences with the percentage of normozoospermic patients among cancer type groups (p = 0.185). A shorter time between cancer diagnosis and sperm banking was observed for testicular and prostate cancer patients (p < 0.001). Most of the patients (89.5%) favored sperm banking as a fertility preservation method. CONCLUSIONS: Although less than 20% of banked sperm samples were disposed of, the majority of patients related sperm banking with safe for fertility preservation. Our results show that all male cancer patients of reproductive age facing cancer treatment could be offered sperm banking.
Assuntos
Criopreservação/estatística & dados numéricos , Infertilidade Masculina/prevenção & controle , Neoplasias , Preservação do Sêmen/estatística & dados numéricos , Bancos de Esperma , Adolescente , Adulto , Idoso , Atitude Frente a Saúde , Métodos Epidemiológicos , Humanos , Infertilidade Masculina/induzido quimicamente , Masculino , Pessoa de Meia-Idade , Neoplasias/terapia , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/terapia , Radioterapia/efeitos adversos , Análise do Sêmen , Bancos de Esperma/estatística & dados numéricos , Neoplasias Testiculares/diagnóstico , Neoplasias Testiculares/terapia , Adulto JovemRESUMO
PURPOSE: Report the characteristics of cryopreserved semen from a cohort of male cancer patients, attitudes towards cryopreservation and outcomes of semen samples based on a 12-year cryopreservation program. MATERIAL AND METHODS: Data from 98 male cancer patients whose sperm samples were banked were evaluated. Demographic parameters, semen characteristics, destination of sperm banked samples and questionnaires answered by the patients regarding cryopreservation time were evaluated. RESULTS: The cancer diagnoses were testicle (56.1 percent), prostate (15.3 percent), Hodgkins lymphomas (9.2 percent), non-Hodgkins lymphomas (7.1 percent), leukemia (3.1 percent) and other malignancies (9.2 percent). The patients with testicular cancer presented lower sperm concentration (p < 0.001); however, there were no differences with the percentage of normozoospermic patients among cancer type groups (p = 0.185). A shorter time between cancer diagnosis and sperm banking was observed for testicular and prostate cancer patients (p < 0.001). Most of the patients (89.5 percent) favored sperm banking as a fertility preservation method. CONCLUSIONS: Although less than 20 percent of banked sperm samples were disposed of, the majority of patients related sperm banking with safe for fertility preservation. Our results show that all male cancer patients of reproductive age facing cancer treatment could be offered sperm banking.
Assuntos
Adolescente , Adulto , Idoso , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Criopreservação/estatística & dados numéricos , Infertilidade Masculina/prevenção & controle , Neoplasias , Bancos de Esperma , Preservação do Sêmen/estatística & dados numéricos , Atitude Frente a Saúde , Métodos Epidemiológicos , Infertilidade Masculina/induzido quimicamente , Neoplasias/terapia , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/terapia , Radioterapia/efeitos adversos , Análise do Sêmen , Bancos de Esperma , Neoplasias Testiculares/diagnóstico , Neoplasias Testiculares/terapia , Adulto JovemRESUMO
OBJECTIVE: To evaluate whether increasing antioxidant intake in men with high levels of DNA damage or lipid peroxidation improves gestational results in couples with history of recurrent embryo loss. DESIGN: Descriptive study (case series). SETTING: Early recurrent embryo loss program at the University of Antioquia, Medellín, Colombia. PATIENT(S): Seventeen men whose spouses had a history of two or more embryo losses before 12 weeks of gestation. INTERVENTION(S): Male partners with increased DNA fragmentation index (%DFI) or high thiobarbituric acid reactive substances (TBARS) were instructed to consume a diet rich in antioxidants or commercial multivitamins containing beta-carotene, vitamin C, vitamin E, and zinc for at least 3 months. MAIN OUTCOME MEASURE(S): Pregnancy outcome was recorded in the spouses of men with increased %DFI or TBARS who received antioxidant supplementation. RESULTS: Of the 17 men, 9 (53%) presented with an increased %DFI or TBARS. They were started on an antioxidant supplementation regimen. Of these nine men, six of their spouses became pregnant. All couples whose male partners accepted antioxidant supplementation achieved a successful pregnancy. CONCLUSIONS: Our study demonstrates the benefits of an increased intake of antioxidant-rich food or antioxidant supplements by men who show high levels of sperm DNA fragmentation or lipid peroxidation, which could result in an improvement in gestational outcomes in couples with history of recurrent embryo losses.
Assuntos
Antioxidantes/administração & dosagem , Dano ao DNA/efeitos dos fármacos , Perda do Embrião/prevenção & controle , Infertilidade Masculina/prevenção & controle , Resultado da Gravidez , Motilidade dos Espermatozoides/efeitos dos fármacos , Espermatozoides/efeitos dos fármacos , Administração Oral , Perda do Embrião/etiologia , Feminino , Humanos , Infertilidade Masculina/complicações , Infertilidade Masculina/diagnóstico , Masculino , Gravidez , Fatores Sexuais , Resultado do TratamentoRESUMO
Bilateral synchronous testicular cancer is a rare disease and is usually associated with similar histological findings in each testicle. The standard therapy of bilateral testis cancer is generally considered to be inguinal orchiectomy. We present a case of synchronous bilateral testicular germ cell tumour, with different histology, initially treated with testis-sparing surgery. After pathology review, the margin of the partial orchiectomy was considered affected, and an inguinal orchiectomy was planned. Options for testis-sparing surgery are discussed.