Search results for " hip"

Short stem total hip arthroplasty: Potential explanations for persistent post-surgical thigh pain.

2017

Abstract: Short stem uncemented femoral implants were developed with the aim of preserving proximal bone stock for future revisions, improving biomechanical reconstruction, aiding insertion through smaller incisions and potentially decreasing or limiting the incidence of thigh pain. Despite all the advantages of short stem designs, it remains unclear whether they are able to limit post-surgical thigh pain. In patients with short stem hip arthroplasty and persistent thigh pain, it is of the utmost importance to understand the potential etiologies of this chronic pain for selecting the appropriate treatment strategy. Therefore, this manuscript explores the hypothetical etiologies of persisten…

Modulation of hippocampal neurogenesis by Nano-Pulsed Laser Therapy

Neurogenesis is a physiological process through which new neurons are generated and it occurs throughout life, subverting the old dogma stating to the inability of the adult brain to replace neurons. Specifically, neurogenesis take place thanks to the presence of neuronal stem cells (NSCs) located in the subventricular zone of the lateral ventricle and in the subgranular zone of the dentate gyrus of the hippocampus. Data present in the literature demonstrate that neurogenesis in the hippocampus decreases during aging and it is impaired in neurodegenerative diseases, such as Alzheimer’s disease, and after traumatic brain injury (TBI). Traumatic Brain Injury (TBI) is a chronic disease that oc…

An O-2-sensitive glomus cell-stem cell synapse induces carotid body growth in chronic hipoxia

2014

Neural stem cells (NSCs) exist in germinal centers of the adult brain and in the carotid body (CB), an oxygen-sensing organ that grows under chronic hypoxemia. How stem cell lineage differentiation into mature glomus cells is coupled with changes in physiological demand is poorly understood. Here, we show that hypoxia does not affect CB NSC proliferation directly. Rather, mature glomus cells expressing endothelin-1, the O2-sensing elements in the CB that secrete neurotransmitters in response to hypoxia, establish abundant synaptic-like contacts with stem cells, which express endothelin receptors, and instruct their growth. Inhibition of glomus cell transmitter release or their selective des…

Neuroendocrine neoplasms in the context of inherited tumor syndromes: a reappraisal focused on targeted therapies

2022

Purpose Neuroendocrine neoplasms can occur as part of inherited disorders, usually in the form of well-differentiated, slow-growing tumors (NET). The main predisposing syndromes include: multiple endocrine neoplasias type 1 (MEN1), associated with a large spectrum of gastroenteropancreatic and thoracic NETs, and type 4 (MEN4), associated with a wide tumour spectrum similar to that of MEN1; von Hippel-Lindau syndrome (VHL), tuberous sclerosis (TSC), and neurofibromatosis 1 (NF-1), associated with pancreatic NETs. In the present review, we propose a reappraisal of the genetic basis and clinical features of gastroenteropancreatic and thoracic NETs in the setting of inherited syndromes with a s…

Zvaigžņotā Debess: 2004/05, Ziema

2004

Contents: Ņ.Ozoliņa. Earthquakes in Latvia ; I.Daube. Space Craft “Ranger-7” ; M. Gailis. Moon Investigation in Riga ; J.Tambergs. Problems of Dialogue between Quantum Mechanics and Theology (concluded) ; Z Alksne, A.Alksnis. Ultra-Cool Dwarf Pair Weighed ; A.Balklavs. Successful Hunt of Protostars ; A.Balklavs. Silhouette of a Black Hole ; A.Balklavs. A Distant Giant Quasar ; A.Balklavs. Cosmic Objects in Captivating Photos – 3 ; J.Freimanis. Extragalactic Planetary Nebulae ; J.Jaunbergs. Cassini Enters the Saturnian System ; D.Krieviņš. Space Launchers of Early XXI Century. The Commonwealth of Independent States (CIS) ; J.Bārzdiņš. Professor Rusins-Martins Freivalds on the Path of Science…

Ģimenes hiperholesterinēmijas prevalence starp pacientiem ar koronāro artēriju aterosklerozi

2018

Ievads: Tiek uzskatīts, ka vienam no 200-250 cilvēkiem ir heterozigota ģimenes hiperholesterinēmija (ĢH). Pacientiem ar ĢH ir ievērojami paaugstināts zema blīvuma lipoproteīna holesterīna (ZBLH) līmenis, kas savukārt noved pie agrīnas aterosklerozes attīstības. Aterosklerozei attīstoties koronārajās artērijās, pieaug mirstība no koronārās sirds slimības. Pacientiem ar ĢH ZBLH līmenis tipiski ir >5 mmol/l, taču lipīdus pazeminošās terapijas fonā, tas var samazināties zem 5 mmol/l, kas apgrūtina ĢH diagnozes atpazīšanu. Mērķis: Noskaidrot potenciālo ģimenes hiperholesterinēmijas izplatību starp Latvijas Kardioloģijas centrā (LKC) stacionētiem pacientiem ar pierādītu koronāro artēriju ateroskl…

Māsas rīcība hipotermijas profilaksē operāciju laikā

2017

Bakalaura darba tēma ir ,, Māsas rīcība hipotermijas profilaksē operāciju laikā “. Tēma ir aktuāla, jo pēdējo gadu laikā mūsdienu ķirurģijā lielu uzmanību ir piesaistījusi nopietna problēma – nejauša intraoperatīva hipotermija. Nejaušai intraoperatīvas hipotermijas profilaksei ir liela nozīme operācijas procesā un pēcoperācijas periodā. Nejaušas intraoperatīvas hipotermijas attīstības biežums operāciju zāle, izpētot vairākus avotus, svārstās no 60% līdz 90%. Šāds stāvoklis ir atkarīgs no problēmai pievērstās uzmanības daudzuma. Darba mērķis ir noskaidrot māsas rīcību hipotermijas profilaksei operāciju laikā. Pētniecības uzdevumi ir izveidot pētījuma instrumentu, balstoties uz literatūras av…

Angioma retiniano como síndrome mascarada de tumor del nervio óptico en la enfermedad de Von Hippel-Lindau

2006

espanolCaso clinico: Varon de 35 anos con antecedentes familiares de enfermedad de von Hippel-Lindau (VHL) diagnosticado de dos hemangiomas retinianos en ojo derecho (OD) y uno en ojo izquierdo. Las lesiones se trataron con crioterapia en OD y laserterapia en OI. A pesar de una aparente buena evolucion de las lesiones retinianas hubo una progresiva disminucion de la AV. Se realizo RM donde se evidencio lesiones tumorales del nervio optico (NO) bilaterales compatibles con glioma, meningioma o hemangioblastoma. Actualmente: AV (OD): movimiento de manos y AV(OI): 0,6. Discusion: La presencia de los hemangiomas retinianos en este paciente hizo retrasar el diagnostico de un tumor en el NO, infre…

Epidemiology and risk factors in osteoarthritis: literature review data from "OASIS" study

2004

Ostheoarthritis (OA) is a social disease characterized by pain, inflammation and stiffness due to an involvement of articular cartilage, soft tissues and bone. OA is the most common rheumatic disease, every age can be affected but prevalence increases dramatically with age with a greater incidence in subjects between 40 and 50 years of age. Hip OA has an important correlation with weight, genetic factors, sex, previous traumas, occupational factors and age. People older than 35 have a prevalence of Hip OA of 10,8% that becomes 35,4% in people older than 85. Knee OA has a great correlation with weight, life style and physical activity. An Italian study has demonstrated that the prevalence of…

Iedzimtu hiperholesterinēmiju izraisošo mutāciju noskaidrošana Latvijas populācijā

2015

Iedzimta hiperholesterinēmija (IH) ir nopietna ģenētiskā slimība, kurai raksturīgs paaugstināts zema blīvuma lipoproteīnu holesterīna daudzums asinīs. IH ir riska faktors sirds-asinsvadu slimībām. Šīs slimības cēlonis visbiežāk ir mutācijas četros gēnos – LDLR, APOB, PCSK9 un LDLRAP1. Darba mērķis bija noskaidrot IH fenotipu izraisošās mutācijas četros gēnos Latvijas populācijā, izmantojot liela apjoma paralēlās sekvenēšanas metodi. Darbā tika analizētas mutācijas 98 pacientos, kuriem ir aizdomas par IH. Ģenētisko variāciju noteikšanai tika izmantota jaunās paaudzes pusvadītāja sekvenēšanas metode. Rezultātā tika atrastas 97 dažādas nomaiņas, vairums no kurām ir APOB un LDLR gēnos, bet vism…