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2.
Biol Res Nurs ; 26(1): 91-100, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37559349

RESUMO

AIM: To compare pain and stress response through cortisol and DHEA levels, implementing. Total intra venous anesthesia (TIVA) versus general anesthesia with volatile anesthetics (VOL). DESIGN: This is a prospective randomized correlation study with consecutive measurements. METHODS: In an ambulatory surgical center from October of 2019 to August of 2020, patients who underwent breast reconstruction with autologous fat grafting were randomized into 2 groups. Patients in the TIVA group (n = 23) received intravenous anesthesia and those in the VOL group (n = 23) received volatile anesthesia (desflurane). Demographic, anthropometric and clinical data were recorded. Arterial systolic (SP) and diastolic (DP) blood pressure, heart rate and oxygen saturation were recorded. Pain and stress levels were evaluated through salivary cortisol and DHEA levels at 4 different time points: T0) 1 hour before induction, T1) during the induction, T2) during anesthesia maintenance, and T3) in recovery phase. Statistical analysis was performed with SPSS 25.0 at significant level α = .05. FINDINGS: There were no statistically significant differences between the 2 groups regarding demographic features. Interestingly that there was a statistically significant difference in the vital sign monitoring where patients in the TIVA group reported with higher levels of SP(T2) and DP (T2), whilst DHEA (T1) levels was correlated positively with patient's age and cortisol (T1) levels and negatively with DP (T3). CONCLUSIONS: This study supports the use of TIVA as a safe and effective option for anesthesia in patients undergoing breast reconstruction with autologous fat grafting.


Assuntos
Hidrocortisona , Mamoplastia , Humanos , Estudos Prospectivos , Procedimentos Cirúrgicos Ambulatórios , Anestesia Geral , Dor , Desidroepiandrosterona , Ensaios Clínicos Controlados Aleatórios como Assunto
3.
Discov Oncol ; 13(1): 52, 2022 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-35751713

RESUMO

AIM: The aim of this review was to collect all available literature data analysing the effects of the anastomotic leak (AL) on post-sphincter preserving rectal cancer surgery bowel and urogenital function as well as to quality of life (QoL) dimensions. METHODS: A literature search of the PubMed and Embase electronic databases was conducted by two independent investigators and all studies using either functional parameters or QoL as a primary or secondary endpoint after a rectal cancer surgery AL were included. RESULTS: Amongst the 13 identified studies focusing on the post-AL neorecto-anal function, 3 case-matched studies,3 comparative studies and 1 population-based study supported the deleterious effects of the AL on bowel function, with disturbances of the types of high bowel movement frequency, urgency and increased incontinent episodes to predominate. At one case-matched study the Low Anterior Resection Syndrome (LARS) score was inferior in the AL patients. At limited under-powered studies, urinary frequency, reduced male sexual activity and female dyspareunia may be linked to a prior AL. According to two QoL-targeted detailed studies, QoL disturbances, such as physical and emotional function difficulties may persist up to 3 years after the AL occurrence. CONCLUSIONS: AL may have adverse effects on postoperative pelvic function and QoL in rectal cancer patients. As evidenced by this literature review, the limited reports on this intriguing topic may trigger the initiative for planning and undertaking larger, multicentre studies on rectal cancer patients with varying degrees of AL severity.

4.
Rare Tumors ; 14: 20363613221147470, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36601383

RESUMO

Pancreatic mature cystic teratomas are very rare with limited cases found in the literature. These lesions raise a diagnostic challenge and complicate the surgical approach not only because of their anatomic position but also because of their ever-growing size. An elusive diagnosis, usually leads to the operative theatre where surgical resection takes place. We present a rare case of a large pancreatic cystic teratoma extending into the mediastinum in a 29-year-old woman which was succesfully managed with en-bloc distal pancreatectomy and spleenectomy.

5.
Clin Case Rep ; 9(12): e05225, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34963809

RESUMO

Splenosis is a condition that occurs after splenic rupture. A 29-year-old male patient with a history of splenectomy was admitted due to multiple vomiting episodes. The diagnostic workup was unable to differentiate between gastric GIST and splenosis. Laparoscopic surgical resection was performed leading to the diagnosis of splenosis.

6.
J Gastrointestin Liver Dis ; 30(3): 404-406, 2021 09 21.
Artigo em Inglês | MEDLINE | ID: mdl-34551028

RESUMO

Various endoscopic techniques have been described for the treatment of post-operative colonic strictures. Our aim is to report a solely EUS-guided recanalization procedure for a complete rectal stricture, without the use of fluoroscopy or stenting. A 66-year-old male was submitted to low anterior resection and protective ileostomy for rectal adenocarcinoma, complicated with complete anastomotic stricture 6 months later. The patient was treated with a modified EUS-guided rendezvous technique. A colonoscope was advanced through the ileostomy to the sigmoid colon, which was subsequently filled with water. A linear echoendoscope was advanced transanally to the distal part of the rectal anastomosis. The proximal colon was punctured with a 19G needle and a guidewire was advanced through the needle. The rectocolonic fistula tract was first dilated by graduated dilation catheters. Subsequently, progressive pneumatic dilatation was performed. There were no post-procedural complications. At 6-month follow-up the anastomosis was patent, with no significant stricture recurrence. In conclusion, a rendezvous technique for EUS-guided recanalization of complete rectal anastomotic strictures is feasible and safe in a non-radiology assisted setting. In selected cases of distal stenoses balloon dilation could effectively serve as the sole treatment, without the adjunct of stent placement.


Assuntos
Anastomose Cirúrgica , Endoscopia , Reto , Ultrassonografia , Idoso , Anastomose Cirúrgica/efeitos adversos , Constrição Patológica , Endoscopia/métodos , Fluoroscopia , Humanos , Masculino , Reto/diagnóstico por imagem , Reto/cirurgia , Stents , Ultrassonografia/métodos
7.
Gastrointest Tumors ; 4(3-4): 96-103, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29594111

RESUMO

BACKGROUND: Neoadjuvant chemoradiotherapy (CRT) is considered the standard approach before any surgical intervention for locally advanced rectal tumors and has been proven to significantly improve the local recurrence rates of rectal cancer. However, the optimal timing of surgical resection after neoadjuvant CRT remains debatable. OBJECTIVE AND METHODS: We conducted a retrospective review of 65 consecutive patients with locally advanced rectal cancer who underwent preoperative CRT followed by surgical resection in order to evaluate the optimal time for surgical treatment. We used two alternative groups for analysis: patients who underwent surgery up to 6 weeks after CRT (n = 28) and those who underwent surgery 6 weeks or more after CRT (n = 27). Also, we compared patients who were operated on within 3 months (n = 39) with those who underwent surgical resection after more than 3 months (n = 16). Nonresponders to CRT were excluded from the analysis. RESULTS: There was no statistically significant association between waiting period post CRT and radiological downstaging for any group (p > 0.05 for any association). Also, there was no association between recurrence of disease, cancer-related deaths, perineural invasion, or positive lymph node ratio and any waiting period up to 3 months (p > 0.05 for all associations). CONCLUSION: In this small exploratory study there was no evident difference in outcome according to timing of surgery, which suggests that further research in larger cohorts is warranted.

9.
Atherosclerosis ; 251: 266-272, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-27428294

RESUMO

BACKGROUND AND AIMS: Smoking is associated with increased inflammatory process and impairment of fibrinolytic status. Concord grape juice (CGJ), a rich source of flavonoids, can modify cardiovascular risk factors. We aimed to evaluate the impact of CGJ on smoking-induced impairment of inflammatory and fibrinolytic status in healthy smokers. METHODS: We studied the effect of a 2-week oral treatment with CGJ in 26 healthy smokers on three occasions (day 0: baseline, day 7 and day 14) in a randomized, placebo-controlled, double-blind, cross-over design. Measurements were carried out before (pSm) and 20 min after (Sm20) cigarette smoking. Serum levels of intercellular adhesion molecule-1 (sICAM-1) and plasminogen activator inhibitor 1 (PAI-1) were measured as markers of inflammatory and fibrinolytic status, respectively. RESULTS: Treatment with CGJ reduced pSm sICAM-1 levels (p < 0.001), while placebo had no impact on ICAM-1 levels (p = 0.31). Moreover, treatment with CGJ decreased pSm values of PAI-1 (p < 0.001) while placebo had no impact on PAI-1 levels (p = 0.89). Smoking induced an elevation in PAI-1 levels after smoking compared to pro-smoking levels in all study days and in both arms (CGJ and placebo) of the study (p < 0.001 for all). Interestingly, CGJ compared to placebo, attenuated the acute smoking increase in sICAM-1 and PAI-1 levels (p < 0.001 and p = 0.005 respectively). CONCLUSIONS: CGJ consumption improved inflammatory and fibrinolytic status in healthy smokers and attenuated acute smoking induced increase in ICAM-1 and PAI-1 levels. These findings shed further light on the favorable effects of flavonoids in cardiovascular health.


Assuntos
Suplementos Nutricionais , Fibrinólise/efeitos dos fármacos , Flavonoides/uso terapêutico , Inflamação/etiologia , Inflamação/terapia , Fumar/efeitos adversos , Adulto , Bebidas , Simulação por Computador , Estudos Cross-Over , Método Duplo-Cego , Feminino , Humanos , Molécula 1 de Adesão Intercelular/metabolismo , Masculino , Estresse Oxidativo , Inibidor 1 de Ativador de Plasminogênio/metabolismo , Fatores de Risco , Tamanho da Amostra , Trombose/terapia , Vitis , Adulto Jovem
10.
Am Surg ; 81(2): 133-42, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25642874

RESUMO

Lateral internal sphincterotomy (LIS) is considered the surgical treatment of choice for chronic anal fissure (CAF). Flap techniques for fissure coverage have the advantage of primary wound healing, potentially providing better functional results and faster pain relief. The standard surgical strategy for CAF consisting of conventional LIS (CLIS) up to the dentate line was modified by "tailoring" the LIS to the apex of the CAF, but never greater than 1 cm, and by advancing a dermal flap for coverage of the CAF (LIS + flap) after fissurectomy. Thirty consecutive patients who underwent "LIS + flap" were compared with 32 patients who had been previously treated by CLIS. A modified, trapezoid-like Y-V flap from perianal skin was advanced into the CAF base. Pain at the first postoperative day, pain at defecation during the first week, postoperative use of analgesics, and time for patients' pain relief were significantly less at the "LIS + flap" group (P < 0.01). Objective healing was achieved faster (P < 0.01) and soiling episodes were less (P < 0.05) after "LIS + flap." The addition of a dermal flap after "conservative" LIS resulted in better healing and significantly less postoperative discomfort than the isolated application of CLIS.


Assuntos
Fissura Anal/cirurgia , Retalhos Cirúrgicos , Adulto , Analgésicos/uso terapêutico , Doença Crônica , Defecação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Dor Pós-Operatória/epidemiologia , Estudos Prospectivos , Fatores de Tempo , Resultado do Tratamento , Cicatrização/fisiologia
11.
J Laparoendosc Adv Surg Tech A ; 25(12): 971-5, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26539837

RESUMO

BACKGROUND: Obesity is a common disease affecting young adults and adolescents worldwide. This study aims to delineate the role of laparoscopic sleeve gastrectomy (LSG) in weight loss and associated comorbidities to adolescents and young adults. PATIENTS AND METHODS: This study is a retrospective analysis of a prospective cohort of all young adults 16-22 years old who underwent LSG for morbid obesity and were followed up for 24 months. Demographic data, weight loss, and the status of several comorbidities, such as diabetes mellitus, hypertension, and dyslipidemia, were assessed at postoperative Months 1, 3, 6, 12, 18, and 24. RESULTS: Overall, at baseline and after 24 months of close follow-up of 37 adolescents and young adults who had undergone LSG, the body mass index of the patients was 46.93 ± 6.07 kg/m(2) versus 26.2 ± 3.6 kg/m(2) (P < .001), and the body weight was 143 ± 29 kg versus 78 ± 15 kg (P < .001). From the first follow-up visit after operation to the last one at the 24 months, there was also a significant difference in percentage excess weight loss (22.40 ± 6.58% versus 81 ± 17%; P < .001), body mass index difference (-5.47 ± 1.69 kg/m(2) versus -18.08 ± 4.38 kg/m(2); P < .001), and percentage excess body mass index loss (26.06 ± 7.56% versus 96 ± 21%; P < .001). The percentage of the adolescents and young adults with diabetes mellitus, hypertension, and dyslipidemia were diminished gradually at 6 months postoperatively (P < .001). CONCLUSIONS: LSG represents a safe and attractive treatment strategy for morbidly obese adolescents and young adults with comorbidities. In this study group excellent resolution of excess weight and comorbid conditions is achieved 2 years after LSG.


Assuntos
Gastrectomia/métodos , Laparoscopia/métodos , Obesidade Mórbida/cirurgia , Redução de Peso , Adolescente , Índice de Massa Corporal , Feminino , Seguimentos , Humanos , Masculino , Obesidade Mórbida/complicações , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
12.
Am J Hypertens ; 27(1): 38-45, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24061071

RESUMO

BACKGROUND: Smoking is associated with impaired vascular function. Concord grape juice (CGJ), a rich source of flavonoids, can modify cardiovascular risk factors. Endothelial function and arterial stiffness are surrogate markers of arterial health. We examined the impact of CGJ on arterial wall properties in healthy smokers. METHODS: We studied the effect of a 2-week oral treatment with CGJ in 26 healthy smokers on 3 occasions (day 0 (baseline), day 7, and day 14) in a randomized, placebo-controlled, double-blind, crossover study. Measurements were taken before (pSm), immediately after (Sm0), and 20 minutes after (Sm20) cigarette smoking. Endothelial function was evaluated by flow-mediated dilation (FMD) of the brachial artery. Carotid-femoral pulse wave velocity (PWV) was measured as an index of aortic stiffness. RESULTS: Compared with placebo, treatment with CGJ resulted in a significant improvement in pSm values of FMD (P = 0.02) and PWV (P = 0.04). At baseline, smoking decreased FMD in both the CGJ group (P < 0.001) and the placebo group (P < 0.001). Compared with placebo, CGJ treatment prevented the acute smoking-induced decrease in FMD on day 7 (P = 0.02) and day 14 (P < 0.001). Moreover, at baseline, smoking induced a significant elevation in PWV in both the CGJ group (P = 0.02) and the placebo group (P = 0.04). Treatment with CGJ prevented the smoking-induced elevation in PWV on day 7 (P = 0.003) and day 14 (P < 0.001). CONCLUSIONS: CGJ consumption improved endothelial function and vascular elastic properties of the arterial tree in healthy smokers and attenuated acute smoking-induced impairment of arterial wall properties.


Assuntos
Bebidas , Endotélio Vascular/fisiopatologia , Fumar/efeitos adversos , Rigidez Vascular , Vasodilatação , Vitis , Administração Oral , Adulto , Pressão Arterial , Biomarcadores/sangue , Estudos Cross-Over , Método Duplo-Cego , Endotélio Vascular/metabolismo , Feminino , Frutas , Grécia , Voluntários Saudáveis , Humanos , Masculino , Análise de Onda de Pulso , Fumar/sangue , Fumar/fisiopatologia , Fatores de Tempo , Adulto Jovem
13.
Atherosclerosis ; 232(1): 10-6, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24401211

RESUMO

OBJECTIVES: Metabolic syndrome (MetS) is associated with adverse cardiovascular events, and impaired vascular function. In this study we evaluated the effects of omega-3 polyunsaturated fatty acids (PUFAs) supplementation on vascular function, inflammatory and fibrinolytic process in subjects with MetS. METHODS: We studied the effect of a 12 weeks oral treatment with 2 g/day of omega-3 PUFAs in 29 (15 male) subjects (mean age 44 ± 12 years) with MetS on three occasions (day0: baseline, day 28 and day 84). The study was carried out on two separate arms (PUFAs and placebo), according to a randomized, placebo-controlled, double-blind, cross-over design. The diagnosis of MetS was based on the guidelines of Adult Treatment Panel III definition. Endothelial function was evaluated by flow-mediated dilation (FMD) of the brachial artery. Carotid-femoral pulse wave velocity (PWV) was measured as an index of aortic stiffness. Serum levels of interleukin-6(IL-6) and plasminogen activator inhibitor-1(PAI-1) were measured by ELISA. RESULTS: Treatment with PUFAs resulted in a significant improvement from day 0 to 28 and 84 in FMD and PWV (p < 0.001 for all). Nevertheless, treatment with placebo resulted in no significant changes in FMD (p = 0.63) and PWV (p = 0.17). Moreover, PUFAs treatment, compared to placebo, decreased IL-6 levels (p = 0.03) and increased PAI-1 levels (p = 0.03). Finally, treatment with PUFAs resulted in a significant decrease in fasting triglyceride levels from day 0 to 28 and 84 (p < 0.001) and in serum total cholesterol levels (p < 0.001). CONCLUSIONS: In subjects with MetS, treatment with omega-3 PUFAs improved endothelial function and arterial stiffness with a parallel antiinflammatory effect.


Assuntos
Anti-Inflamatórios/farmacologia , Artérias/metabolismo , Endotélio Vascular/metabolismo , Ácidos Graxos Ômega-3/farmacologia , Síndrome Metabólica/fisiopatologia , Rigidez Vascular , Administração Oral , Adulto , Idoso , Aorta/patologia , Glicemia , Índice de Massa Corporal , Proteína C-Reativa/metabolismo , Estudos Cross-Over , Método Duplo-Cego , Feminino , Fibrinólise , Humanos , Inflamação , Interleucina-6/metabolismo , Lipídeos/sangue , Masculino , Síndrome Metabólica/metabolismo , Pessoa de Meia-Idade , Inibidor 1 de Ativador de Plasminogênio/metabolismo
14.
Int J Cardiol ; 166(2): 340-6, 2013 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-22100606

RESUMO

BACKGROUND: Smoking is associated with endothelial dysfunction and arterial stiffness. Supplementation of Ω-3 PUFAs is associated with better prognosis. Aim of this study was to evaluate the effects of Ω-3 polyunsaturated fatty acids (PUFAs) supplementation on smoking-induced impairment of arterial function. METHODS: We studied the effect of a 12 weeks oral treatment with 2gr/day of Ω-3 PUFAs in 20 healthy smokers on three occasions (day 0:baseline, day 28 and day 84). The study was carried out on two separate arms (Ω-3 fatty acids and placebo), according to a randomized, placebo-controlled, double-blind, cross-over design. Measurements were carried out before (pSm), immediately and 20min after cigarette smoking. Endothelial function was evaluated by flow-mediated dilation (FMD) of the brachial artery. Carotid-femoral pulse wave velocity (PWV) was measured as an index of aortic stiffness and augmentation index (AIx) as a measure of arterial wave reflections. Circulating levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and plasminogen activator inhibitor-1 (PAI-1) were measured. RESULTS: Compared with placebo, Ω-3 PUFAs treatment resulted in a significant improvement in pSm values of FMD (p<0.05), AIx (p<0.001) and PWV (p<0.01). Although, acute cigarette smoking decreased FMD and caused an increase in AIx and PWV, Ω-3 PUFAs treatment blunted the acute smoking-induced impairment of FMD (p<0.001), AIx (p<0.05) and PWV (p<0.05) and significantly decreased levels of TNFα (p<0.05) and IL-6 (p=0.01) and increased levels of PAI-1 (p=0.05). CONCLUSIONS: Ω-3 PUFAs improved endothelial function and the elastic properties of the arterial tree in healthy smokers, with a parallel anti-inflammatory effect.


Assuntos
Artérias/efeitos dos fármacos , Endotélio Vascular/efeitos dos fármacos , Ácidos Graxos Ômega-3/administração & dosagem , Fibrinólise/efeitos dos fármacos , Fumar/tratamento farmacológico , Vasodilatação/efeitos dos fármacos , Administração Oral , Adulto , Artérias/fisiologia , Velocidade do Fluxo Sanguíneo/efeitos dos fármacos , Velocidade do Fluxo Sanguíneo/fisiologia , Estudos Cross-Over , Método Duplo-Cego , Endotélio Vascular/fisiologia , Feminino , Fibrinólise/fisiologia , Humanos , Masculino , Fumar/fisiopatologia , Resultado do Tratamento , Vasodilatação/fisiologia
15.
Int J Cardiol ; 140(1): 12-8, 2010 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-19501922

RESUMO

Major depression is a common feature of heart failure patients and possibly stems from their common biochemical background. Depression and heart failure co-morbidity has several clinical implications on the prognosis of these patients. Furthermore antidepressive drugs have known cardiovascular side effects, while their safety and efficacy in heart failure has not been fully elucidated yet. The right choice of antidepressive treatment in heart failure constitutes an issue of high importance as it can affect the clinical outcome of these patients. In this article we highlight the role of major depression in heart failure and demonstrate their common biochemical background. Moreover we review the acquired so far knowledge on the use of the various categories of antidepressants in heart failure by reference to the existing clinical studies on antidepressants efficacy and safety in heart failure. Even though certain conclusions cannot be drawn yet, evidence suggests that the use of selective serotonin reuptake inhibitors may have a beneficial effect on clinical outcome of heart failure patients.


Assuntos
Antidepressivos/uso terapêutico , Depressão/epidemiologia , Insuficiência Cardíaca/epidemiologia , Insuficiência Cardíaca/psicologia , Antidepressivos/farmacologia , Comorbidade , Depressão/tratamento farmacológico , Depressão/fisiopatologia , Transtorno Depressivo Maior/diagnóstico , Transtorno Depressivo Maior/tratamento farmacológico , Humanos , Prevalência , Prognóstico , Inibidores Seletivos de Recaptação de Serotonina/farmacologia , Inibidores Seletivos de Recaptação de Serotonina/uso terapêutico , Resultado do Tratamento
18.
Acta Histochem Cytochem ; 41(3): 59-64, 2008 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-18636112

RESUMO

The successful treatment of breast cancer is dependent upon a number of complex factors. Her-2/neu gene amplification is known to be one of the most common genetic alterations associated with breast cancer and its accurate determination has become necessary for the selection of patients for trastuzumab therapy. The aim of this study was to prove the consistency of chromogenic in situ hybridisation (CISH) technique after analyzing the overexpression of the Her-2/neu proto-oncogene in 100 invasive breast carcinomas and by comparing CISH results with immunohistochemistry (IHC) and fluorescence in situ hybridisation (FISH). Moreover, it was done to evaluate the possible correlation of estrogen (ERs) and progesterone receptors (PRs), the proliferation marker Ki67 and the tumour suppressor gene p53 with HER-2/neu status of these breast carcinomas. Of the 100 breast carcinomas that were analysed, 22 cases showed HER-2/neu amplification, 66 cases showed no amplification, whereas 12 cases were non-interpretable in both assays (FISH and CISH). Consequently, the overall concordance between FISH and CISH was 100%. Additionally, it was observed that when HER-2/neu gene was overexpressed, there was an association with negative PRs and ERs status, negative p53 protein expression and high Ki67 labelling index. It is concluded that patients with tumours scoring 2+ with the CBE356 antibody (borderline immunohistochemistry-tested cases) would also benefit from CISH as it is shown to be highly accurate, practical and can be easily integrated into routine testing in any histopathology laboratory. Finally, CISH represents an important addition to the HER2 testing algorithm.

19.
Int J Androl ; 30(2): 65-72, 2007 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-17073945

RESUMO

The development of intracytoplasmic sperm injection (ICSI) for treatment of infertility as a result of severe male factor has improved the chances of achieving pregnancy in many infertile couples. However, concerns have been raised regarding the safety of this technique, because natural sperm selection is bypassed. In the present study, 25 oligoasthenozoospermic patients who were divided into two groups according to age: group A, 20-34 (n = 10) and group B, 35-50 (n = 15), were included. Pooling the data of the three semen parameters that were tested (volume, concentration and progressive motility) no statistically significant difference between the two age groups was found. A total of 50 883 decondensed spermatozoa was analysed using the dual and triple colour fluorescence in situ hybridization to estimate the rates of aneuploidy for chromosomes 13, 18, 21, X and Y in the two age groups. There was a significantly higher incidence of disomy for chromosome 21 compared to the other autosomes (chromosomes 13 and 18) in both age groups. The disomy rate of XY was significantly higher in the younger subject group (0.1%) compared to the older group (0.05%, p < 0.05). Statistically significant differences in the mean number of clinical pregnancies and abortions were not observed between the two age groups. The aneuploidy rates for all the analysed chromosomes did not differ significantly, both between and within the two age groups, and as a result there seems to be no effect of male age on chromosome numbers in the spermatozoa and on the ICSI outcome.


Assuntos
Envelhecimento/genética , Aneuploidia , Astenozoospermia/genética , Injeções de Esperma Intracitoplásmicas/métodos , Espermatozoides/patologia , Adulto , Astenozoospermia/patologia , Humanos , Infertilidade Masculina/genética , Infertilidade Masculina/terapia , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
20.
J Assist Reprod Genet ; 24(10): 437-43, 2007 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-17768675

RESUMO

PURPOSE: To investigate the effects of male ageing on DNA fragmentation and chromatin packaging in the spermatozoa of oligoasthenoteratozoospermic (OAT) patients. METHODS: Sixty-one OAT patients and 49 men with proven fertility (controls) were included in the present study. DNA fragmentation was detected by terminal deoxynucleotidyl transferase-mediated dUTP-nick end labelling (TUNEL) assay, while chromatin packaging was assessed by chromomycin A3 (CMA3) staining. RESULTS: In the patient group, semen volume, percentage of normally shaped spermatozoa and sperm motility decreased significantly (P<0.05) with age, while sperm concentration and the percentage of TUNEL and CMA3 positive spermatozoa showed a statistically significant increase with age (P<0.05). In the control group, conventional semen parameters as well as DNA fragmentation and chromatin packaging did not show a statistically significant change with age (P>0.05). CONCLUSION: Increased age in OAT patients is associated with an increase in sperm concentration, DNA fragmentation and poor chromatin packaging, as well as a decline in semen volume, sperm morphology and motility.


Assuntos
Astenozoospermia/patologia , Cromatina/ultraestrutura , Fragmentação do DNA , Empacotamento do DNA , Oligospermia/patologia , Espermatozoides/ultraestrutura , Adulto , Fatores Etários , Astenozoospermia/fisiopatologia , Cromatina/química , Cromomicina A3/análise , Cromomicina A3/química , Corantes Fluorescentes/análise , Corantes Fluorescentes/química , Humanos , Masculino , Pessoa de Meia-Idade , Oligospermia/fisiopatologia , Sêmen/citologia , Sêmen/fisiologia , Motilidade dos Espermatozoides , Espermatozoides/fisiologia
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