Dermatosis más frecuentes en pacientes con trasplante renal.

Objective: To determine the most frequent dermatoses in patients with kidney transplant in the dermatology consultation, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, in Mexico City, in the period from March 2016 to March 2020.

Method: Descriptive, cross-sectional study that included 153 patients with a complete medical history with prior informed consent and authorization from the hospital ethics committee.

Results: All patients presented one or more dermatoses.

Hypothalamic-pituitary-gonadal axis disturbance and its association with insulin resistance in kidney transplant recipients.

Objective: To evaluate hypothalamic-pi- tuitary-gonadal (HPG) axis alterations at 1 and 12 months after kidney transplan- tation (KT) and their association with in- sulin resistance.

Methods: A retrospective clinical study was conducted in a tertiary care center in kidney transplantation recipients (KTRs) aged 18- 50 years with primary kidney disease and stable renal graft function. LH, FSH, E2/T, and HOMA-IR were assessed at 1 and 12 months after KT.

[Transplant patient and kidney graft survival in a retrospective cohort in Mexico].

Background: Knowledge of the functionality of the graft and patient survival is essential to assess the success of kidney transplantation.

Objective: To determine the survival of transplanted patients by type of donor and the functionality of kidney grafts in a cohort in Mexico.

Material And Methods: Kidney transplant cohort from 2013 to 2017 in Mexico.

Kidney graft functionality 1 year after kidney transplantation.

Objective: To determine the evolution, associated factors and the outcomes of transplanted people one year after the evolution of a cohort in Mexico.

Method: Kidney transplant cohort from 2013 to 2017 in Mexico. 1118 patients were analyzed.

Biochemical Characteristics of Bone Mineral Metabolism before and throughout the First Year after Kidney Transplantation, Persistent Hyperparathyroidism, and Risk Factors in a Latin Population.

Bone mineral metabolism disease, which included persistent hyperparathyroidism, is common after successful kidney transplantation (KT) and is related with negative outcomes in kidney transplant recipients. There is a lack of information about bone mineral metabolism, persistent hyperparathyroidism, and its risk factors in Latin kidney transplant recipients (KTRs). : A retrospective study was conducted in 74 patients aged 18-50 years with evolution of 12 months after KT and estimated glomerular filtration rate (eGFR) >60 ml/min; biochemical data of bone mineral metabolism before and at 1, 3, 6, and 12 months of KT were registered.

Behavior of Calcium, Phosphorus, and Parathormone Before Transplantation and in Months 1, 3, 6, 9, and 12 After Transplantation.

Background: Bone mineral disease after transplantation persists and is an issue that must be addressed owing to the cardiovascular impact it presents. The objective of this study is to present the behavior of calcium, phosphorus, and parathormone (PTH) before renal transplantation (RT) and throughout the 12 months after transplant surgery.

Methods: A longitudinal observational study of RT patients was performed from 2013 to 2017 in 2 renal transplant units in Mexico.

Uncommon Complications in the First Year After Renal Transplantation.

Introduction: Classic post-transplant complications are highly studied and monitored; however, other unusual complications may occur due to immunosuppression. The objective of this study is to show these rare complications in a kidney transplant center.

Material And Methods: Retrospective, observational, longitudinal study of renal transplants carried out from 2013 to 2017 in the Renal Transplant Unit of the National Medical Center Siglo XXI.

Phosphorus removal from UASB reactor effluent by reactive media filtration.

The phosphorus (P) and BOD7 removal performance of an upflow packed bed reactor (PBR) filled with two reactive filter media was studied over 50 weeks. The lower one-fifth of the reactor was filled with calcium-silicate-hydrate (Sorbulite®) and the upper four-fifth with calcium-silicate (Polonite®). A laboratory-scale upflow anaerobic sludge bed reactor (UASB) delivered wastewater to the PBR.

Sequential UASB and dual media packed-bed reactors for domestic wastewater treatment - experiment and simulation.

A wastewater treatment system composed of an upflow anaerobic sludge blanket (UASB) reactor followed by a packed-bed reactor (PBR) filled with Sorbulite(®) and Polonite(®) filter material was tested in a laboratory bench-scale experiment. The system was operated for 50 weeks and achieved very efficient total phosphorus (P) removal (99%), 7-day biochemical oxygen demand removal (99%) and pathogenic bacteria reduction (99%). However, total nitrogen was only moderately reduced in the system (40%).

A model to describe the performance of the UASB reactor.

A dynamic model to describe the performance of the Upflow Anaerobic Sludge Blanket (UASB) reactor was developed. It includes dispersion, advection, and reaction terms, as well as the resistances through which the substrate passes before its biotransformation. The UASB reactor is viewed as several continuous stirred tank reactors connected in series.