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1.
Ann Plast Surg ; 86(4): 444-449, 2021 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-32842029

RESUMEN

INTRODUCTION: A hidden penis can interfere with normal hygiene, prevent effective voiding, restrict sexual activity, and cause great embarrassment to the patient. The terms "hidden," "buried," and "trapped" penis are used interchangeably. To date, there is no classification system that adequately characterizes the spectrum of this condition. In this study, we propose a simplified nomenclature and classification system for adult-acquired hidden penis. METHODS: We performed a retrospective review of all adult patients treated surgically for hidden penis by the senior author from 2009 to 2019. Patients were classified into either "buried" or "trapped" categories. A "buried" penis was defined as a hidden penis concealed by suprapubic fat without fibrous tethering. These patients were managed with panniculectomy, monsplasty, or both. In contrast, those with a "trapped" penis presented with scarred or fibrous tissue, which required surgical lysis, phalloplasty, and penile skin resurfacing. RESULTS: Thirteen patients met the inclusion criteria. The cohort was aged 53 ± 15.7 years with a mean body mass index of 37.4 ± 4.3 kg/m2. Two patients required repeat operations, yielding a total of 15 operative encounters. Six were defined as buried, and 9 as trapped. Inability to achieve erection was the most common preoperative complaint in those with buried penis (67%), whereas difficulties in voiding were most common with trapped penis (78%). Patients with trapped penises had a significantly larger body habitus than those with a buried penis (39.8 vs 34.2 kg/m2, P = 0.0088). Operative duration and length of hospital stay were comparable between the trapped and buried penis groups (206 vs 161 minutes, P = 0.3664) (5 vs 1 day, P = 0.0836). One third experienced wound complications, but this was not significantly different between buried and trapped penises (17% vs 44%, P = 0.5804). Postoperatively, 5 patients experienced spontaneous erections, and 7 were able to void while standing. CONCLUSIONS: Patients with a trapped penis present with a different preoperative symptom profile and body type than those with a buried penis. Our nomenclature and classification system offer a simple and clear algorithm for the management of hidden penis. Large cohort studies are warranted to assess differences in clinical outcomes between trapped and buried penises.


Asunto(s)
Abdominoplastia , Enfermedades del Pene , Adulto , Anciano , Índice de Masa Corporal , Humanos , Masculino , Persona de Mediana Edad , Enfermedades del Pene/cirugía , Pene/cirugía , Estudios Retrospectivos
2.
Rheumatology (Oxford) ; 59(7): 1505-1513, 2020 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-31628482

RESUMEN

OBJECTIVES: 3-hydroxy-3-methylglutaryl coenzyme-A (HMG Co-A) reductase inhibitors (statins) are standard treatment for hyperlipidaemia. In addition to lipid-lowering abilities, statins exhibit multiple anti-inflammatory effects. The objectives of this study were to determine whether treatment of patients with RA with lovastatin decreased CRP or reduced disease activity. METHODS: We conducted a randomized double-blind placebo-controlled 12 week trial of lovastatin vs placebo in 64 RA patients with mild clinical disease activity but an elevated CRP. The primary efficacy end point was the reduction in mean log CRP. Secondary end points included disease activity, RF and anti-CCP antibody titres. Mechanistic end points included levels of serum cytokines. Safety was assessed; hepatic and muscle toxicities were of particular interest. RESULTS: Baseline features were similar between groups. No significant difference in mean log CRP reduction between the two groups was observed, and disease activity did not change from baseline in either treatment group. Mechanistic analyses did not reveal significant changes in any biomarkers. A post hoc analysis of subjects not using biologic therapy demonstrated a significantly greater proportion achieving ⩾20% reduction in CRP from baseline in the lovastatin group compared with placebo (P-value = 0.007). No difference was observed in subjects receiving biologics. Lovastatin was well tolerated with no serious safety concerns. CONCLUSION: This study showed no anti-inflammatory or clinical effects on RA disease activity after 12 weeks of treatment with lovastatin. Lovastatin had a modest effect on CRP in subjects not using biologics, suggesting statins may be anti-inflammatory in selected patients. TRIAL REGISTRATION: ClinicalTrials.gov, http://clinicaltrials.gov, NCT00302952.


Asunto(s)
Artritis Reumatoide/tratamiento farmacológico , Proteína C-Reactiva/inmunología , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Lovastatina/uso terapéutico , Adulto , Anticuerpos Antiproteína Citrulinada/inmunología , Artritis Reumatoide/inmunología , Artritis Reumatoide/fisiopatología , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factor Reumatoide/inmunología , Índice de Severidad de la Enfermedad , Resultado del Tratamiento
3.
Rheumatology (Oxford) ; 59(4): 860-868, 2020 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-31497844

RESUMEN

OBJECTIVE: To address heterogeneity complicating primary SS (pSS) clinical trials, research and care by characterizing and clustering patients by their molecular phenotypes. METHODS: pSS patients met American-European Consensus Group classification criteria and had at least one systemic manifestation and stimulated salivary flow of ⩾0.1 ml/min. Correlated transcriptional modules were derived from gene expression microarray data from blood (n = 47 with appropriate samples). Patients were clustered based on this molecular information using an unbiased random forest modelling approach. In addition, multiplex, bead-based assays and ELISAs were used to assess 30 serum cytokines, chemokines and soluble receptors. Eleven autoantibodies, including anti-Ro/SSA and anti-La/SSB, were measured by Bio-Rad Bioplex 2200. RESULTS: Transcriptional modules distinguished three clusters of pSS patients. Cluster 1 showed no significant elevation of IFN or inflammation modules. Cluster 2 showed strong IFN and inflammation modular network signatures, as well as high plasma protein levels of IP-10/CXCL10, MIG/CXCL9, BLyS (BAFF) and LIGHT. Cluster 3 samples exhibited moderately elevated IFN modules, but with suppressed inflammatory modules, increased IP-10/CXCL10 and B cell-attracting chemokine 1/CXCL13 and trends toward increased MIG/CXCL9, IL-1α, and IL-21. Anti-Ro/SSA and anti-La/SSB were present in all three clusters. CONCLUSION: Molecular profiles encompassing IFN, inflammation and other signatures can be used to separate patients with pSS into distinct clusters. In the future, such profiles may inform patient selection for clinical trials and guide treatment decisions.


Asunto(s)
Expresión Génica , Síndrome de Sjögren/genética , Adulto , Anticuerpos Antinucleares/inmunología , Autoanticuerpos/inmunología , Factor Activador de Células B/genética , Factor Activador de Células B/inmunología , Factor Activador de Células B/metabolismo , Quimiocina CXCL10/genética , Quimiocina CXCL10/inmunología , Quimiocina CXCL10/metabolismo , Quimiocina CXCL13/genética , Quimiocina CXCL13/inmunología , Quimiocina CXCL13/metabolismo , Quimiocina CXCL9/genética , Quimiocina CXCL9/inmunología , Quimiocina CXCL9/metabolismo , Citocinas/genética , Citocinas/inmunología , Citocinas/metabolismo , Ensayo de Inmunoadsorción Enzimática , Femenino , Redes Reguladoras de Genes , Humanos , Inflamación/genética , Inflamación/inmunología , Inflamación/metabolismo , Interferones/genética , Interferones/inmunología , Interferones/metabolismo , Interleucina-1alfa/genética , Interleucina-1alfa/inmunología , Interleucina-1alfa/metabolismo , Interleucinas/genética , Interleucinas/inmunología , Interleucinas/metabolismo , Masculino , Persona de Mediana Edad , Modelos Estadísticos , Fenotipo , Síndrome de Sjögren/clasificación , Síndrome de Sjögren/inmunología , Síndrome de Sjögren/metabolismo , Miembro 14 de la Superfamilia de Ligandos de Factores de Necrosis Tumoral/genética , Miembro 14 de la Superfamilia de Ligandos de Factores de Necrosis Tumoral/inmunología , Miembro 14 de la Superfamilia de Ligandos de Factores de Necrosis Tumoral/metabolismo
5.
Am J Surg Pathol ; 46(12): 1650-1658, 2022 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-36006769

RESUMEN

Male-to-female (MtF) transgender individuals are at risk for prostate cancer, although guidelines for screening and management in this population are not well established. We describe a series of 9 MtF transgender patients who underwent prostate tissue sampling and highlight histopathologic features and challenges related to pathologic interpretation of prostate tissue in this patient population. Seven of 9 total patients were diagnosed with prostate cancer and all had elevated prostate-specific antigen at the time of diagnosis. Three of the 7 patients diagnosed with prostate cancer had received different types of hormone therapy for gender affirmation before the diagnosis of prostate cancer, and in all 3 of these patients, there was histologic evidence of hormone therapy effect in both benign prostate tissue and/or the adenocarcinoma. The 2 patients with benign prostate tissue underwent transurethral resection for lower urinary tract symptoms and were previously on hormone therapy for gender affirmation. Both of these specimens showed diffuse glandular atrophy and basal cell hyperplasia, indicative of hormone therapy effect on benign prostatic tissue. In the patients diagnosed with prostate cancer, a spectrum of grades was observed, ranging from Grade Group 1 to Grade Group 5. Four patients underwent radical prostatectomy, with 2 cases showing extraprostatic extension and Grade Group 5 prostatic adenocarcinoma, and 2 showing Grade Group 2 prostatic adenocarcinoma. Three of the 4 patients who underwent radical prostatectomy had received gender-affirming hormone therapy before surgery, and all 3 of these specimens showed hormone therapy effect in non-neoplastic prostate tissue and focal hormone therapy effect in prostatic adenocarcinoma. The presence of areas of viable carcinoma without hormone therapy effect enabled the assignment of a Gleason score and Grade Group in these 3 cases. Hormone therapy administered for gender identity affirmation induces histopathologic changes to both benign prostate tissue (nonkeratinizing squamous metaplasia, diffuse atrophy, basal cell hyperplasia, and stromal dominance with decreased numbers of glands) and prostatic adenocarcinoma (nuclear pyknosis, atrophy, cytoplasmic vacuolization, and architectural patterns that would qualify for Gleason 4 and 5 in the absence of hormone therapy effect) that have been traditionally seen in cis-male prostate cancer patients receiving hormone therapy. In the absence of hormone therapy, the morphology of prostatic adenocarcinoma in transgender patients shows classic morphologic features similar to those seen in cis-male patients not on hormone therapy. Prostate cancer with hormone therapy effect may not only be histologically quite subtle and may be overlooked if not suspected, but also should not be assigned a Gleason score because the Gleason score would substantially overstate its biologic potential. Therefore, similar to cis-male patients who have received androgen deprivation therapy for prostate cancer, transgender patients on hormone therapy for gender affirmation may be at risk for both underrecognition and over-grading of prostate cancer, particularly if the pathologist is not aware of the clinical history.


Asunto(s)
Adenocarcinoma , Neoplasias de la Próstata , Personas Transgénero , Humanos , Masculino , Neoplasias de la Próstata/tratamiento farmacológico , Neoplasias de la Próstata/patología , Identidad de Género , Hiperplasia , Antagonistas de Andrógenos/uso terapéutico , Prostatectomía , Adenocarcinoma/tratamiento farmacológico , Adenocarcinoma/diagnóstico , Atrofia , Hormonas
6.
Arthritis Rheumatol ; 74(2): 200-211, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34347945

RESUMEN

OBJECTIVE: B cells can become activated in germinal center (GC) reactions in secondary lymphoid tissue and in ectopic GCs in rheumatoid arthritis (RA) synovium that may be tumor necrosis factor (TNF) and lymphotoxin (LT) dependent. This study was undertaken to characterize the peripheral B cell compartment longitudinally during anti-TNF therapy in RA. METHODS: Participants were randomized in a 2:1 ratio to receive standard dosing regimens of etanercept (n = 43) or adalimumab (n = 20) for 24 weeks. Eligible participants met the American College of Rheumatology 1987 criteria for RA, had clinically active disease (Disease Activity Score in 28 joints >4.4), and were receiving stable doses of methotrexate. The primary mechanistic end point was the change in switched memory B cell fraction from baseline to week 12 in each treatment group. RESULTS: B cell subsets remained surprisingly stable over the course of the study regardless of treatment group, with no significant change in memory B cells. Blockade of TNF and LT with etanercept compared to blockade of TNF alone with adalimumab did not translate into significant differences in clinical response. The frequencies of multiple activated B cell populations, including CD21- double-negative memory and activated naive B cells, were higher in RA nonresponders at all time points, and CD95+ activated B cell frequencies were increased in patients receiving anti-TNF treatment in the nonresponder group. In contrast, frequencies of transitional B cells-a putative regulatory subset-were lower in the nonresponders. CONCLUSION: Overall, our results support the notion that peripheral blood B cell subsets are remarkably stable in RA and not differentially impacted by dual blockade of TNF and LT with etanercept or single blockade of TNF with adalimumab. Activated B cells do associate with a less robust response.


Asunto(s)
Adalimumab/farmacología , Antirreumáticos/farmacología , Artritis Reumatoide/inmunología , Linfocitos B/efectos de los fármacos , Linfocitos B/fisiología , Etanercept/farmacología , Inhibidores del Factor de Necrosis Tumoral/farmacología , Adalimumab/uso terapéutico , Adulto , Anciano , Antirreumáticos/uso terapéutico , Artritis Reumatoide/sangre , Artritis Reumatoide/tratamiento farmacológico , Etanercept/uso terapéutico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Método Simple Ciego , Inhibidores del Factor de Necrosis Tumoral/uso terapéutico
7.
JCI Insight ; 6(21)2021 11 08.
Artículo en Inglés | MEDLINE | ID: mdl-34747368

RESUMEN

BackgroundIL-6 receptor (IL-6R) signaling drives development of T cell populations important to type 1 diabetes pathogenesis. We evaluated whether blockade of IL-6R with monoclonal antibody tocilizumab would slow loss of residual ß cell function in newly diagnosed type 1 diabetes patients.MethodsWe conducted a multicenter, randomized, placebo-controlled, double-blind trial with tocilizumab in new-onset type 1 diabetes. Participants were screened within 100 days of diagnosis. Eligible participants were randomized 2:1 to receive 7 monthly doses of tocilizumab or placebo. The primary outcome was the change from screening in the mean AUC of C-peptide collected during the first 2 hours of a mixed meal tolerance test at week 52 in pediatric participants (ages 6-17 years).ResultsThere was no statistical difference in the primary outcome between tocilizumab and placebo. Immunophenotyping showed reductions in downstream signaling of the IL-6R in T cells but no changes in CD4 memory subsets, Th17 cells, Tregs, or CD4+ T effector cell resistance to Treg suppression. A DC subset decreased during therapy but regressed to baseline once therapy stopped. Tocilizumab was well tolerated.ConclusionTocilizumab reduced T cell IL-6R signaling but did not modulate CD4+ T cell phenotypes or slow loss of residual ß cell function in newly diagnosed individuals with type 1 diabetes.Trial RegistrationClinicalTrials.gov NCT02293837.FundingNIH National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) and National Institute of Allergy and Infectious Diseases (NIAID) UM1AI109565, UL1TR000004 from NIH/National Center for Research Resources (NCRR) Clinical and Translational Science Award (CTSA), NIH/NIDDK P30DK036836, NIH/NIDDK U01DK103266, NIH/NIDDK U01DK103266, 1UL1TR000064 from NIH/NCRR CTSA, NIH/National Center for Advancing Translational Sciences (NCATS) UL1TR001878, UL1TR002537 from NIH/CTSA; National Health and Medical Research Council Practitioner Fellowship (APP1136735), NIH/NIDDK U01-DK085476, NIH/CTSA UL1-TR002494, Indiana Clinical and Translational Science Institute Award UL1TR002529, Vanderbilt Institute for Clinical and Translational Research UL1TR000445. NIH/NCATS UL1TR003142, NIH/CTSA program UL1-TR002494, Veteran Affairs Administration, and 1R01AI132774.


Asunto(s)
Subgrupos de Linfocitos B/metabolismo , Diabetes Mellitus Tipo 1/genética , Receptores de Interleucina-6/antagonistas & inhibidores , Adolescente , Niño , Diabetes Mellitus Tipo 1/patología , Método Doble Ciego , Femenino , Humanos , Masculino
8.
Public Health Nurs ; 27(6): 482-91, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-21087301

RESUMEN

OBJECTIVE: To assess the needs of clients in a home-based care (HBC) program aimed at improving the quality of lives of people living with HIV in Region 4 of Guyana (Demerara-Mahaica region) following their involvement with the HBC program, volunteers, and nurse providers. DESIGN AND SAMPLE: A cross-sectional analysis of a needs assessment conducted through a verbally administered questionnaire. We collected a cross-sectional sample of 84 HBC clients living with HIV from Region 4 in Guyana. MEASURES: Respondents were administered a questionnaire that asked questions regarding the demographics; services received; quality of service delivery; and mental health and substance abuse. RESULTS: The services most commonly received by respondents included nutritional assessment and counseling, HIV prevention education, emotional support, hygiene education, support for antiretroviral adherence, and support for HIV disclosure. Respondents reported further need of referrals to income-generation opportunities, food and nutritional supplement support, and support for children. Forty-two percent of the respondents screened positive for probable depression, and 37% of respondents screened positive for being at risk for a drinking problem. CONCLUSIONS: While a substantial portion of needs were addressed by the HBC program, outstanding needs included linking people living with HIV to income-generation opportunities, food support, mental health, and services for children. We suggest that mental health and substance use services be factored into HIV programming and that referral systems be strengthened to ensure access to support services for people living with HIV.


Asunto(s)
Adaptación Psicológica , Infecciones por VIH/terapia , Necesidades y Demandas de Servicios de Salud/estadística & datos numéricos , Atención Domiciliaria de Salud/estadística & datos numéricos , Estrés Psicológico , Adulto , Estudios Transversales , Femenino , Guyana , Infecciones por VIH/enfermería , Infecciones por VIH/psicología , Indicadores de Salud , Humanos , Entrevista Psicológica , Modelos Logísticos , Masculino , Salud Mental , Satisfacción del Paciente , Psicometría , Encuestas y Cuestionarios , Resultado del Tratamiento
9.
Arthritis Rheumatol ; 70(9): 1470-1480, 2018 09.
Artículo en Inglés | MEDLINE | ID: mdl-29604186

RESUMEN

OBJECTIVE: To evaluate the clinical efficacy and safety of baminercept, a lymphotoxin ß receptor IgG fusion protein (LTßR-Ig), for the treatment of primary Sjögren's syndrome (SS), and to explore the possible mechanisms of action of this treatment. METHODS: In this multicenter trial, 52 patients with primary SS were randomized in a 2:1 ratio to receive subcutaneous injections of 100 mg of baminercept every week for 24 weeks or matching placebo. The primary end point was the change between screening and week 24 in the stimulated whole salivary flow (SWSF) rate. Secondary end points included the European League Against Rheumatism Sjögren's Syndrome Disease Activity Index (ESSDAI), as well as measurements of select chemokines and cytokines and enumeration of peripheral blood B and T cell subsets. RESULTS: The change from baseline to week 24 in the SWSF rate was not significantly different between the baminercept and placebo treatment groups (baseline-adjusted mean change -0.01 versus 0.07 ml/minute; P = 0.332). The change in the ESSDAI during treatment was also not significantly different between the treatment groups (baseline-adjusted mean change -1.23 versus -0.15; P = 0.104). Although the incidence of adverse events was similar between the treatment groups, baminercept therapy was associated with a higher incidence of liver toxicity, including 2 serious adverse events. Baminercept also produced a significant decrease in plasma levels of CXCL13 and significant changes in the number of circulating B and T cells, consistent with its known inhibitory effects on LTßR signaling. CONCLUSION: In this trial, treatment with baminercept failed to significantly improve glandular and extraglandular disease in patients with primary SS, despite evidence from mechanistic studies showing that it blocks LTßR signaling.


Asunto(s)
Proteínas Recombinantes de Fusión/uso terapéutico , Síndrome de Sjögren/tratamiento farmacológico , Adulto , Anciano , Linfocitos B/efectos de los fármacos , Quimiocina CXCL13/sangre , Método Doble Ciego , Femenino , Humanos , Receptor beta de Linfotoxina/inmunología , Masculino , Persona de Mediana Edad , Proteínas Recombinantes de Fusión/inmunología , Síndrome de Sjögren/sangre , Síndrome de Sjögren/inmunología , Linfocitos T/efectos de los fármacos , Resultado del Tratamiento
10.
Rev Panam Salud Publica ; 46, 2022. Special Issue Improving Household Nutrition Security and Public Health in the CARICOM
Artículo en Inglés | PAHOIRIS | ID: phr-56274

RESUMEN

[EXTRACT]. A key feature of this special supplement of the Pan American Journal of Public Health is its focus on the state of chronic non-communicable diseases (NCDs) in the Caribbean. The negative value chain impact is its effects on economic growth and childhood educational outcomes. Thus, there is an ecological relationship between interventions to support dietary diversity, improving successful transitions from school to work and economic growth in the Caribbean Community (CARICOM). Since the 2007 Declaration of Port of Spain the region has made insufficient strides towards realizing the vision of reducing childhood obesity. In 2015, the Council for Trade and Economic Development (COTED) endorsed a 6-Point Policy Package (6-PPP) to promote healthy food environments and reduce the incidence of childhood obesity. The strategy supports the Caribbean Plan of Action to Prevent Childhood Obesity and the 6-PPP comprises mandatory food labelling, nutrition standards and guidelines for schools and other institutions, food marketing and portion sizes, nutritional quality of food supply (levels of harmful ingredients), trade and fiscal policies, and food chain incentives, particularly for fruits and vegetables.


Asunto(s)
Enfermedad Crónica , Enfermedades no Transmisibles , Obesidad Infantil , Alimentos Integrales , Región del Caribe
11.
Diabetes ; 62(11): 3766-74, 2013 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-23835333

RESUMEN

Trials of immune therapies in new-onset type 1 diabetes (T1D) have shown success, but not all subjects respond, and the duration of response is limited. Our aim was to determine whether two courses of teplizumab, an Fc receptor-nonbinding anti-CD3 monoclonal antibody, reduces the decline in C-peptide levels in patients with T1D 2 years after disease onset. We also set out to identify characteristics of responders. We treated 52 subjects with new-onset T1D with teplizumab for 2 weeks at diagnosis and after 1 year in an open-label, randomized, controlled trial. In the intent to treat analysis of the primary end point, patients treated with teplizumab had a reduced decline in C-peptide at 2 years (mean -0.28 nmol/L [95% CI -0.36 to -0.20]) versus control (mean -0.46 nmol/L [95% CI -0.57 to -0.35]; P = 0.002), a 75% improvement. The most common adverse events were rash, transient upper respiratory infections, headache, and nausea. In a post hoc analysis we characterized clinical responders and found that metabolic (HbA1c and insulin use) and immunologic features distinguished this group from those who did not respond to teplizumab. We conclude that teplizumab treatment preserves insulin production and reduces the use of exogenous insulin in some patients with new-onset T1D. Metabolic and immunologic features at baseline can identify a subgroup with robust responses to immune therapy.


Asunto(s)
Anticuerpos Monoclonales Humanizados/uso terapéutico , Péptido C/metabolismo , Diabetes Mellitus Tipo 1/tratamiento farmacológico , Adolescente , Adulto , Anticuerpos Monoclonales Humanizados/efectos adversos , Niño , Femenino , Humanos , Masculino
12.
Violence Against Women ; 18(4): 506-11, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22865619

RESUMEN

In this article, the editor of Everyday Pornography offers a response to Ronald Weitzer's 2011 review of that book, addressing questions about objectivity, the framing of pornography as violence against women, the role of women's testimony in debates about pornography, and research on porn's consumers.


Asunto(s)
Literatura Erótica , Sexualidad , Humanos
14.
Diabetes ; 61(9): 2340-8, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22721971

RESUMEN

Rapamycin/interleukin-2 (IL-2) combination treatment of NOD mice effectively treats autoimmune diabetes. We performed a phase 1 clinical trial to test the safety and immunologic effects of rapamycin/IL-2 combination therapy in type 1 diabetic (T1D) patients. Nine T1D subjects were treated with 2-4 mg/day rapamycin orally for 3 months and 4.5 × 10(6) IU IL-2 s.c. three times per week for 1 month. ß-Cell function was monitored by measuring C-peptide. Immunologic changes were monitored using flow cytometry and serum analyses. Regulatory T cells (Tregs) increased within the first month of therapy, yet clinical and metabolic data demonstrated a transient worsening in all subjects. The increase in Tregs was transient, paralleling IL-2 treatment, whereas the response of Tregs to IL-2, as measured by STAT5 phosphorylation, increased and persisted after treatment. No differences were observed in effector T-cell subset frequencies, but an increase in natural killer cells and eosinophils occurred with IL-2 therapy. Rapamycin/IL-2 therapy, as given in this phase 1 study, resulted in transient ß-cell dysfunction despite an increase in Tregs. Such results highlight the difficulties in translating therapies to the clinic and emphasize the importance of broadly interrogating the immune system to evaluate the effects of therapy.


Asunto(s)
Diabetes Mellitus Tipo 1/tratamiento farmacológico , Células Secretoras de Insulina/fisiología , Interleucina-2/administración & dosificación , Sirolimus/administración & dosificación , Linfocitos T Reguladores/inmunología , Animales , Diabetes Mellitus Tipo 1/inmunología , Quimioterapia Combinada , Humanos , Células Secretoras de Insulina/efectos de los fármacos , Interleucina-2/uso terapéutico , Ratones , Ratones Endogámicos NOD
16.
Urology ; 71(1): 110-2, 2008 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-18242376

RESUMEN

OBJECTIVES: The purpose of this study was to determine the prevalence of sperm within post-ejaculatory urine in both fertile and infertile men. METHODS: Fifteen men of proven fertility and 66 non-azoospermic men being evaluated for infertility were recruited in two academic centers. Laboratory studies included a semen analysis and the examination of post-ejaculate urine for the presence and concentration of sperm. RESULTS: The median total urine sperm count for the fertile group (26.6 million) was not significantly greater than the infertile group (8.3 million, P = 0.63). The median percentage of total sperm (urine plus semen) present in urine for the fertile group (14.8%) was not different from that in the infertile group (15.3%, P = 0.36). Sperm were found in the urine of 73% of fertile and 65% of infertile patients (P = 0.54). CONCLUSIONS: The prevalence of sperm in the post-ejaculatory urine in the fertile population is similar to that in infertile patients, which suggests that a great deal more information is needed to interpret this test in the management of these patients.


Asunto(s)
Eyaculación/fisiología , Infertilidad Masculina/orina , Recuento de Espermatozoides , Urinálisis/normas , Orina/citología , Adulto , Anciano , Humanos , Modelos Lineales , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Semen
17.
Fertil Steril ; 85(4): 961-4, 2006 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-16580381

RESUMEN

OBJECTIVE: To determine whether sperm harvesting and cryopreservation at the time of vasectomy reversal is cost-effective. DESIGN: Model of actual costs and results at five institutions. SETTING: Multicenter study comprising five centers, including university hospitals and private practices. PATIENT(S): Men undergoing vasectomy reversal. INTERVENTION(S): We established two models for vasectomy reversal. The first model was sperm harvesting and cryopreservation at the time of vasectomy reversal. The second model was sperm harvesting at the time of IVF only if the patient remained azoospermic after vasectomy reversal. Vasectomy reversal procedures modeled included bilateral vasovasostomy and bilateral epididymovasostomy. The costs for each procedure at the five institutions were collated and median costs determined. MAIN OUTCOME MEASURE(S): Median cost of procedure and calculated financial comparisons. RESULT(S): The median cost of testicular sperm extraction/cryopreservation performed at the time of bilateral vasovasostomy was $1,765 (range, $1,025-$2,800). The median cost of microsurgical epididymal sperm aspiration or testicular sperm extraction with cryopreservation performed at the time of epididymovasostomy was $1,209 (range, $905-$2,488). The average of the median costs for percutaneous sperm aspiration or testicular sperm aspiration for those patients with a failed vasectomy reversal was $725 (range, $400-$1,455). CONCLUSION(S): Sperm retrieval with cryopreservation at the time of vasectomy reversal is not a cost-effective management strategy.


Asunto(s)
Criopreservación/economía , Preservación de Semen/economía , Recolección de Tejidos y Órganos/economía , Vasovasostomía/economía , Análisis Costo-Beneficio , Criopreservación/métodos , Criopreservación/tendencias , Humanos , Masculino , Preservación de Semen/métodos , Preservación de Semen/tendencias , Recolección de Tejidos y Órganos/métodos , Recolección de Tejidos y Órganos/tendencias , Vasovasostomía/métodos , Vasovasostomía/tendencias
18.
Eur J Pediatr ; 161(7): 377-9, 2002 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-12111189

RESUMEN

UNLABELLED: Methylmalonic acidemia unresponsive to cobalamin is often fatal in infancy. Patients have been considered candidates for hepatic transplantation and experience has been that the procedure eliminates the life-threatening episodes of ketoacidosis that characterize this disease. CONCLUSION: experience with a 24-year-old patient treated with hepatic transplantation indicates that this procedure does not prevent progressive renal failure and neurologic dysfunction.


Asunto(s)
Lesión Renal Aguda/etiología , Trasplante de Hígado , Errores Innatos del Metabolismo/diagnóstico , Errores Innatos del Metabolismo/cirugía , Ácido Metilmalónico/sangre , Metilmalonil-CoA Mutasa/deficiencia , Enfermedades del Sistema Nervioso/etiología , Calidad de Vida , Lesión Renal Aguda/fisiopatología , Lesión Renal Aguda/terapia , Adulto , Progresión de la Enfermedad , Femenino , Humanos , Errores Innatos del Metabolismo/complicaciones , Metilmalonil-CoA Mutasa/metabolismo , Enfermedades del Sistema Nervioso/fisiopatología , Enfermedades del Sistema Nervioso/terapia , Pronóstico , Diálisis Renal/métodos , Medición de Riesgo , Resultado del Tratamiento
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