H Castellanos

ORCID: 0000-0002-9789-4148
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About
Contact & Profiles
Research Areas
  • Reproductive Biology and Fertility
  • Urinary Tract Infections Management
  • Urological Disorders and Treatments
  • Venous Thromboembolism Diagnosis and Management
  • Pericarditis and Cardiac Tamponade
  • Immunotoxicology and immune responses
  • Neurological Disorders and Treatments
  • T-cell and B-cell Immunology
  • Esophageal and GI Pathology
  • Ovarian cancer diagnosis and treatment
  • Autoimmune and Inflammatory Disorders
  • Platelet Disorders and Treatments
  • Cancer, Stress, Anesthesia, and Immune Response
  • Folate and B Vitamins Research
  • Maternal and fetal healthcare
  • Case Reports on Hematomas
  • Myeloproliferative Neoplasms: Diagnosis and Treatment
  • Vasculitis and related conditions
  • Spinal Hematomas and Complications
  • Muscle and Compartmental Disorders
  • Moringa oleifera research and applications
  • Medical and Biological Sciences
  • Intestinal Malrotation and Obstruction Disorders
  • Plant and Fungal Interactions Research
  • Cancer, Hypoxia, and Metabolism

Science and Technology Corporation for Naval, Maritime and Riverine Industry Development
2025

Florida International University
2025

Universidad Nacional de Colombia
2024

Facultad Latinoamericana de Ciencias Sociales
2019

University of El Salvador
2017

Latin University of Costa Rica
2017

Instituto Nacional de Neurología y Neurocirugía
2010

Universidad Nacional "Siglo XX"
1992

Harvard University
1958-1972

Temple University
1969

10.1093/ajcn/9.2.186 article EN publisher-specific-oa American Journal of Clinical Nutrition 1961-04-01

In wastewater treatment scenarios, traditional coagulants are becoming increasingly complex and raising environmental concerns. This has led to the exploration of magnetized plant-derived coagulant as an alternative. this paper, coagulation parameters such dosage pH were optimized through response surface methodology (RSM) based on a central composite design (CCD) employing magnetic derived from Moringa oleifera seeds (M. oleifera–CoFe2O4). The variable during dairy was chemical oxygen...

10.4136/ambi-agua.3021 article EN cc-by Ambiente e Agua - An Interdisciplinary Journal of Applied Science 2025-01-10

Sigmoid volvulus (SV) is uncommon in the United States. Little has been published English literature about high incidence of SV among rural areas Bolivian and Peruvian Andes at 13,000 feet above sea level. A review 230 cases a hospital presented. accounted for 79 percent all intestinal obstructions. Nonoperative reduction was attempted patients except those with peritonitis. alone performed 31 patients, 69 underwent surgical intervention, 66 as an emergency 3 electively. Surgical treatment...

10.1007/bf02048112 article EN Diseases of the Colon & Rectum 1992-04-01

10.1016/s0015-0282(16)36607-9 article EN Fertility and Sterility 1968-03-01

10.1016/0002-9378(58)90193-5 article EN American Journal of Obstetrics and Gynecology 1958-11-01

From the Surgical Service (Gynocologic Division), Peter Bent Brigham Hospital, Boston, Massachusetts

10.1097/00000658-196209000-00004 article EN Annals of Surgery 1962-09-01

Journal Article Two New Herpesviruses From Spider Monkeys (Ateles geoffroyi) Get access L. V. Meléndez, Meléndez England Regional Primate Research Center, Harvard Medical School, Southborough, Massachusetts 01772 Search for other works by this author on: Oxford Academic PubMed Google Scholar H. Castellanos, Castellanos H.H. Barahona, Barahona M. D. Daniel, Daniel R. Hunt, Hunt C. E. O. Fraser, Fraser F. G. Garcéa, Garcéa N. W. King JNCI: of the National Cancer Institute, Volume 49, Issue 1,...

10.1093/jnci/49.1.233 article EN JNCI Journal of the National Cancer Institute 1972-07-01

THERE IS NEED for a simple clinical procedure to determine whether or not the adrenal glands are elaborating biologically significant amounts of estrogenic hormones in postmenopausal patient and their ability increase this hormone production after specific stimulation disease, "stress," adrenocorticotropic (corticotropin). This need arises because proven adrenals synthesize that contribute continued growth advanced cancer breast availability surgical adrenalectomy medicinal suppression...

10.1001/jama.1963.73700170020011 article EN JAMA 1963-04-27

Homografts of the rat ovary do not depend on vascularization to maintain production estrogenic substances up 60 days. Semipermeable millipore filter membranes were used form a chamber in which embed ovarian transplants previously castrated recipients. These chambers excluded leucocytes and prohibit vascularization, yet permitted passage gonadotropic hormones. Vaginal smears uterine weights demonstrated estrogens from these grafts two months later. The functional survival similar preparations...

10.3181/00379727-94-23015 article EN Experimental Biology and Medicine 1957-03-01

Two independent observers confirmed a high degree of reproducibility in reading urinary smears as diagnostic assay secondary amenorrhea. The per cent cornified and non-nucleated cells the progesterone effect all showed characteristic variations menopause typical anovulatory cycles. different pictures were seen Stein-Leventhal syndrome. On corticoid suppression, reversal cytological picture suggested presence an adrenal factor. In pituitary deficiency smear has been atrophic; when human...

10.1001/jama.1964.03060220005001 article EN JAMA 1964-02-29

Introducción. Actualmente la psoriasis se reconoce como una enfermedad sistémica y con ello han surgido trabajos que relacionan otras entidades, entre ellas el síndrome metabólico, cual asocia un mayor riesgo de desarrollar eventos cardiovasculares. Las implicaciones sobre calidad vida los individuos padecen abarcan no solamente aspectos físicos, sino también psicológicos, sociales, sexuales ocupacionales.Materiales métodos. Se hizo estudio descriptivo prospectivo, en incluyeron pacientes...

10.29176/2590843x.255 article ES Revista de la Asociación Colombiana de Dermatología y Cirugía Dermatológica 2013-07-01

Cerebral vascular disease (CVD) represents the second cause in years of life lost, according to Global Burden Disease Study 2015 study. The global report on Alzheimer's estimates that Latin America there are 9.2 million cases dementia, with a prevalence 8.2%. Undoubtedly, is most frequent cause, followed by dementia (VD) 15% cases, although data unknown America. Objective: To analyze and present current evidence classification, pathophysiology, diagnosis treatment cognitive impairment....

10.21767/2171-6625.1000224 article EN cc-by Journal of Neurology and Neuroscience 2017-01-01

Epithelial cells of the distal urethra (studied in voided specimens urine) respond same way to ovarian steroids as do vaginal mueosa, throughout a normal menstrual cycle. Among these urinary cells, non-nucleated, acidophilie amorphous structure termed “non-nucleated cell” is present normally proportion 1 20 per cent. When nonnucleated structures are included count 100 striking variations consistently observed several pathologic conditions. We have confirmed original observations Galli...

10.1210/jcem-18-12-1369 article EN The Journal of Clinical Endocrinology & Metabolism 1958-12-01

Introduction: Hidradenitis suppurativa is a chronic inflammatory skin disease that manifests in the form of painful and recurrent suppurating lesions. In Colombia, there little epidemiological information on this pathology. This study aims to describe severity symptoms, sociodemographic factors quality life HS patients Colombia. Material Methods: an exploratory, multicenter, observational, cross-sectional conducted 8 dermatology centers Results: Several parameters were collected from 90...

10.29176/2590843x.1759 article EN Revista de la Asociación Colombiana de Dermatología y Cirugía Dermatológica 2024-07-30

Introducción: la dermatitis atópica es una enfermedad inmunomediada cada vez más estudiada. El objetivo de este estudio identificar los criterios diagnósticos, las escalas clinimetría, tratamientos preferencia. Además, causas elección y cambio terapia el tiempo espera para ver respuesta terapéutica. Metodología: un observacional, descriptivo corte transversal. Se hizo por medio encuesta virtual distribuida durante actividades académicas, previa realización prueba piloto. Resultados: se...

10.29176/2590843x.1828 article ES Revista de la Asociación Colombiana de Dermatología y Cirugía Dermatológica 2024-10-29
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